Ubuntu_Kung_Fu

This book was born out of an experiment carried out when Ubuntu 6.06 was released in 2006. Back then Ubuntu was rougher around the edges than it is today. Getting MP3 ﬁles to play took some effort. Only a handful of wiﬁ cards worked out of the box and the rest had to be wrangled into working.

Prepared exclusively for J.S. Ash Beta Book Agile publishing for agile developers The book you’re reading is still under development. As part of our Beta book program, we’re releasing this copy well before we normally would. That way you’ll be able to get this content a couple of months before it’s available in ﬁnished form, and we’ll get feedback to make the book even better. The idea is that everyone wins! Be warned. The book has not had a full technical edit, so it will con- tain errors. It has not been copyedited, so it will be full of typos and other weirdness. And there’s been no effort spent doing layout, so you’ll ﬁnd bad page breaks, over-long lines with little black rectan- gles, incorrect hyphenations, and all the other ugly things that you wouldn’t expect to see in a ﬁnished book. We can’t be held liable if you use this book to try to create a spiffy application and you somehow end up with a strangely shaped farm implement instead. Despite all this, we think you’ll enjoy it! Throughout this process you’ll be able to download updated PDFs from your account on http://pragprog.com. When the book is ﬁnally ready, you’ll get the ﬁnal version (and subsequent updates) from the same address. In the meantime, we’d appreciate you sending us your feedback on this book at http://books.pragprog.com/titles/ktuk/errata, or by using the links at the bottom of each page. Thank you for being part of the Pragmatic community! Andy Hunt Prepared exclusively for J.S. Ash Ubuntu Kung Fu Tips, tricks, hints and hacks Keir Thomas The Pragmatic Bookshelf Raleigh, North Carolina Dallas, Texas Prepared exclusively for J.S. Ash Many of the designations used by manufacturers and sellers to distinguish their prod- ucts are claimed as trademarks. Where those designations appear in this book, and The Pragmatic Programmers, LLC was aware of a trademark claim, the designations have been printed in initial capital letters or in all capitals. The Pragmatic Starter Kit, The Pragmatic Programmer, Pragmatic Programming, Pragmatic Bookshelf and the linking g device are trademarks of The Pragmatic Programmers, LLC. The Ubuntu logo is a regis- tered trademark of Canonical, Ltd. Every precaution was taken in the preparation of this book. However, the publisher assumes no responsibility for errors or omissions, or for damages that may result from the use of information (including program listings) contained herein. Our Pragmatic courses, workshops, and other products can help you and your team create better software and have more fun. For more information, as well as the latest Pragmatic titles, please visit us at http://www.pragprog.com Copyright © 2008 Keir Thomas. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmit- ted, in any form, or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior consent of the publisher. Printed in the United States of America. ISBN-10: 1-934356-22-0 ISBN-13: 978-1-934356-22-7 Printed on acid-free paper. B2.0 printing, July 15, 2008 Version: 2008-7-15 Prepared exclusively for J.S. Ash Contents 1 Introduction 15 1.1 How to read this book . . . . . . . . . . . . . . . . . . . 16 1.2 Acknowledgements . . . . . . . . . . . . . . . . . . . . . 17 2 An Ubuntu administration crash course 19 2.1 The Ubuntu desktop . . . . . . . . . . . . . . . . . . . . 20 2.2 Users, passwords and ﬁles . . . . . . . . . . . . . . . . . 22 2.3 Command-line or GUI? . . . . . . . . . . . . . . . . . . . 25 2.4 Software installation and management . . . . . . . . . 35 2.5 Using gconf-editor . . . . . . . . . . . . . . . . . . . . . . 50 2.6 Editing conﬁguration ﬁles . . . . . . . . . . . . . . . . . 52 2.7 Making and keeping backups . . . . . . . . . . . . . . . 53 2.8 Rescue me! What to do if it all goes wrong . . . . . . . . 55 2.9 Miscellaneous things you ought to know . . . . . . . . 57 3 The tips 62 1. Set any picture as wallpaper with a single-click . . . . 62 2. See (and reuse) the most recently typed commands . . 63 3. Add cool new visualizations to Totem/Rhythmbox . . . 64 4. Switch monitor resolutions with a single mouse-click . 64 5. Closely monitor a laptop computer’s power consumption 65 6. Stop the cursor blinking . . . . . . . . . . . . . . . . . . 65 7. Scroll without the mouse in Firefox and Evolution mail windows . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 8. Optimize startup for faster boot times . . . . . . . . . . 66 9. Graph the system bootup performance . . . . . . . . . 70 10. Change Gedit’s printing font . . . . . . . . . . . . . . . . 70 11. Shrink or enlarge images at the command line . . . . . 72 12. View all of a digital photo’s technical information . . . 73 13. Have Ubuntu speak to you . . . . . . . . . . . . . . . . . 73 14. Instantly search for ﬁles in Nautilus . . . . . . . . . . . 74 15. Take photos or record videos with your webcam . . . . 74 Prepared exclusively for J.S. Ash CONTENTS 6 16. Add RAR ﬁle compression support to Ubuntu . . . . . . 75 17. Add a swap ﬁle or expand existing swap space . . . . . 75 18. Get rid of the virtual console legal boiler-plate . . . . . 76 19. Make Wubi installations of Ubuntu run faster . . . . . 77 20. Create website or email links that automatically install software . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 21. Make fonts look superb . . . . . . . . . . . . . . . . . . . 79 22. Download updates faster . . . . . . . . . . . . . . . . . . 80 23. Slow down a touchpad’s scrolling . . . . . . . . . . . . . 80 24. Ensure your Windows partition is always available under Ubuntu . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 25. Improve the GNOME Terminal look and feel . . . . . . 82 26. Ensure Ubuntu always knows the time . . . . . . . . . 83 27. Get more data onto CD-R discs . . . . . . . . . . . . . . 84 28. Share ﬁles across the network (without tearing your hair out) . . . . . . . . . . . . . . . . . . . . . . . . . . . 84 29. Save ink when printing . . . . . . . . . . . . . . . . . . . 86 30. Browse the web from the command-line . . . . . . . . . 87 31. Create an “Ubuntu install” USB stick . . . . . . . . . . 88 32. Add a menu entry for Ubuntu’s compression tool . . . 90 33. Quickly run applications without opening a terminal window . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90 34. Instantly search Google for any word or phrase . . . . . 91 35. Ensure you’re informed about the newest releases of Ubuntu . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92 36. Create a ﬁle delete command that uses the trash . . . 93 37. Conﬁgure Ubuntu’s ﬁrewall . . . . . . . . . . . . . . . . 93 38. Repair Windows from within Ubuntu . . . . . . . . . . . 98 39. Empty the trash even if told you can’t . . . . . . . . . . 99 40. Logon automatically after boot-up . . . . . . . . . . . . 99 41. Use an alternative wiﬁ connection manager . . . . . . . 100 42. Make Evolution more like Outlook (just a little bit) . . . 101 43. Give Ubuntu a static IP address . . . . . . . . . . . . . . 103 44. Format a USB memory stick (or camera memory card) 104 45. Protect Ubuntu so it can’t be booted without a password 107 46. Dump the text on a virtual console to a ﬁle . . . . . . . 109 47. Eliminate the time period during which sudo/gksu pow- ers hang around . . . . . . . . . . . . . . . . . . . . . . . 110 48. Access Ubuntu ﬁles from Windows . . . . . . . . . . . . 111 49. Kill a crashed GUI . . . . . . . . . . . . . . . . . . . . . . 112 50. Make Ubuntu safe for children to use . . . . . . . . . . 113 Report erratum Prepared exclusively for J.S. Ash this copy is (B2.0 printing, July 15, 2008) CONTENTS 7 51. Run two (or more) desktops at the same time . . . . . . 116 52. Go completely fullscreen in virtually any application . 117 53. Make Calculator to round-up (or down) to two digits . . 118 54. Follow the moon’s phases . . . . . . . . . . . . . . . . . 118 55. Import Internet Explorer settings into Firefox . . . . . . 118 56. Drag and drop ﬁles onto the terminal window . . . . . 119 57. Use older digital cameras with Ubuntu . . . . . . . . . 119 58. Use the ultra-quick xterm to bash-out commands . . . 120 59. Install all the program compilation tools you’ll need . . 121 60. Avoid network slowdowns and incompatibilities . . . . 121 61. Print at the command-line . . . . . . . . . . . . . . . . . 123 62. Find the Ubuntu version and code-name . . . . . . . . 123 63. Get your webcam working in Ubuntu . . . . . . . . . . 124 64. Downgrade to Firefox 2 . . . . . . . . . . . . . . . . . . . 124 65. Install all the multimedia playback codecs you’ll ever need . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125 66. Get better DVD movie playback . . . . . . . . . . . . . . 126 67. Run the terminal with a single key-press . . . . . . . . 127 68. See the APT cow . . . . . . . . . . . . . . . . . . . . . . . 127 69. See what Firefox plugins are installed . . . . . . . . . . 128 70. Kill the network connection instantly . . . . . . . . . . 128 71. Post blog entries from your Ubuntu desktop . . . . . . 128 72. Intelligently select only the ﬁles you want . . . . . . . . 129 73. Temporarily disable a user account . . . . . . . . . . . 130 74. Take complete control of desktop effects and animations 131 75. Do some desktop publishing . . . . . . . . . . . . . . . . 133 76. Control volume levels at the command-prompt . . . . . 133 77. Search the Ubuntu ﬁle system . . . . . . . . . . . . . . 134 78. Remove the “bad password” wait period . . . . . . . . . 137 79. Make desktop icons REALLY big . . . . . . . . . . . . . 138 80. Run Ubuntu... without Linux! . . . . . . . . . . . . . . . 138 81. Instantly hide a ﬁle or folder . . . . . . . . . . . . . . . . 139 82. Scan for viruses . . . . . . . . . . . . . . . . . . . . . . . 139 83. Temporarily login as root user at the command-line . . 142 84. Start the screensaver from the command-line . . . . . 143 85. Get the most out of (or into) a Nautilus window . . . . 143 86. View images at the command-line . . . . . . . . . . . . 144 87. Administer the printer from a web browser . . . . . . . 144 88. Move a window without clicking the titlebar . . . . . . . 144 89. Connect to shared folders from the command-line . . . 145 90. Deactivate Caps Lock . . . . . . . . . . . . . . . . . . . . 147 Report erratum Prepared exclusively for J.S. Ash this copy is (B2.0 printing, July 15, 2008) CONTENTS 8 91. Format ﬂoppies . . . . . . . . . . . . . . . . . . . . . . . 147 92. Switch to a lightweight ﬁle manager . . . . . . . . . . . 147 93. Use syntax highlighting in Gedit . . . . . . . . . . . . . 149 94. Stop zip ﬁles sent colleagues getting lost in the email . 150 95. Use an alternative email client . . . . . . . . . . . . . . 150 96. Ensure people hear you when using a microphone . . . 152 97. Quick browse to a location . . . . . . . . . . . . . . . . . 152 98. Turn off the beep . . . . . . . . . . . . . . . . . . . . . . 153 99. Add a second hard disk . . . . . . . . . . . . . . . . . . 153 100. Update Ubuntu in the background . . . . . . . . . . . . 155 101. Install 465 open source fonts . . . . . . . . . . . . . . . 155 102. Be careful not to badly name ﬁles/folders in your Win- dows partition . . . . . . . . . . . . . . . . . . . . . . . . 156 103. Make your Windows partition read only . . . . . . . . . 156 104. Stop Nautilus neatly arranging icons . . . . . . . . . . . 157 105. Run GUI programs from a terminal window without tying up input . . . . . . . . . . . . . . . . . . . . . . . . 157 106. Set the CPU speed from the desktop . . . . . . . . . . . 158 107. Switch to Kubuntu, Xubuntu, or Edubuntu without installing from scratch . . . . . . . . . . . . . . . . . . . 159 108. SSH into Ubuntu from Windows . . . . . . . . . . . . . 159 109. Recover a damaged desktop . . . . . . . . . . . . . . . . 160 110. Recover a damaged desktop #2 . . . . . . . . . . . . . . 160 111. Enable the root user . . . . . . . . . . . . . . . . . . . . 160 112. Quickly create graphical text banners . . . . . . . . . . 161 113. Securely erase data . . . . . . . . . . . . . . . . . . . . . 162 114. Play emacs games . . . . . . . . . . . . . . . . . . . . . . 164 115. Fix video playback problems . . . . . . . . . . . . . . . . 164 116. Turn any text ﬁle into a PDF at the command-line . . . 164 117. Avoid repetitive strain injury when using Ubuntu . . . 165 118. Uninstall Ubuntu . . . . . . . . . . . . . . . . . . . . . . 165 119. Network Ubuntu, Mac and Windows... without doing anything . . . . . . . . . . . . . . . . . . . . . . . . . . . 167 120. Access ISO images as if they’re disk drives . . . . . . . 167 121. Improve Ubuntu’s Microsoft Ofﬁce 2007 ﬁle support . 168 122. Use a friendly version of vim . . . . . . . . . . . . . . . . 169 123. Get around partitioning errors if using BootCamp on Macs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169 124. Have Macs correctly refer to Ubuntu in dual-boot mode 170 125. Sleep, Ubuntu, sleep! . . . . . . . . . . . . . . . . . . . . 170 126. Instantly create a HTML slideshow of photos . . . . . . 171 Report erratum Prepared exclusively for J.S. Ash this copy is (B2.0 printing, July 15, 2008) CONTENTS 9 127. Reveal the desktop . . . . . . . . . . . . . . . . . . . . . 171 128. Set hard disk power-saving . . . . . . . . . . . . . . . . 172 129. View the GNOME desktop version . . . . . . . . . . . . 173 130. Avoid GNOME startup errors . . . . . . . . . . . . . . . 173 131. Use FTP under Ubuntu . . . . . . . . . . . . . . . . . . . 173 132. Switch to old-fashioned tree-view in Nautilus . . . . . . 175 133. Kill any crashed program . . . . . . . . . . . . . . . . . 176 134. Increase the number of documents remembered by Gedit 176 135. Utilize all a sound card’s features . . . . . . . . . . . . . 177 136. Monitor network speed . . . . . . . . . . . . . . . . . . . 178 137. Make the command-prompt colorful . . . . . . . . . . . 178 138. Make Windows permanently available . . . . . . . . . . 180 139. Give the boot menu a wallpaper . . . . . . . . . . . . . . 180 140. Access all removable storage from the command-line . 183 141. Reconﬁgure your graphics card from the ground-up . . 183 142. Unlock the package database . . . . . . . . . . . . . . . 184 143. Administer Ubuntu using a web browser, from any com- puter (or operating system) . . . . . . . . . . . . . . . . 184 144. Give Nautilus windows their own wallpaper . . . . . . . 187 145. Create an encrypted ﬁlestore accessible from any oper- ating system . . . . . . . . . . . . . . . . . . . . . . . . . 188 146. Find out how much disk space is available . . . . . . . 192 147. Make Ubuntu blue (or dark grey, or dark brown) . . . . 192 148. Use versions of Ubuntu that are entirely Free Software 193 149. Install OpenOfﬁce.org’s database component . . . . . . 194 150. Monitor your computer’s temperature and fan speeds . 194 151. Print multiple photos on one sheet of paper . . . . . . . 195 152. Try some alternative web browsers . . . . . . . . . . . . 196 153. Quickly hide/unhide windows using the keyboard . . . 197 154. Convert images from one format to another at the command- line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197 155. Signiﬁcantly expand Gedit’s functionality . . . . . . . . 198 156. Make new mail windows taller . . . . . . . . . . . . . . . 198 157. Avoid making badly burned CD-R/RW discs . . . . . . 199 158. Import email messages from Outlook and/or Outlook Express . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199 159. Use the Mac OS “quit” keyboard shortcut . . . . . . . . 200 160. Switch to bash if sh is in use . . . . . . . . . . . . . . . 201 161. Instantly edit a ﬁle when you’re viewing it in less . . . . 201 162. Access Ubuntu’s desktop from any computing device . 201 Report erratum Prepared exclusively for J.S. Ash this copy is (B2.0 printing, July 15, 2008) CONTENTS 10 163. Remove the annoying delay when installing Firefox exten- sions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202 164. View technical details of your PC’s hardware . . . . . . 202 165. Switch to old-fashioned “spatial browsing” mode . . . . 203 166. Clear the package cache . . . . . . . . . . . . . . . . . . 204 167. Search man pages . . . . . . . . . . . . . . . . . . . . . . 204 168. Convert a PDF to an image . . . . . . . . . . . . . . . . . 205 169. Use a dial-up modem . . . . . . . . . . . . . . . . . . . . 205 170. Steal the Windows (or Mac OS) fonts . . . . . . . . . . . 206 171. Use unusual characters or symbols . . . . . . . . . . . 208 172. Encrypt and sign emails . . . . . . . . . . . . . . . . . . 209 173. Get a nice trashcan on the desktop . . . . . . . . . . . . 214 174. Create .zip ﬁles using maximum compression . . . . . 214 175. Create an Ubuntu “updates” CD/DVD . . . . . . . . . . 215 176. Stop Ubuntu “greying out” stalled program windows as quickly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216 177. Get a high-quality (and free) command-line word pro- cessor by installing Microsoft Word . . . . . . . . . . . . 216 178. Create a “superuser terminal” shortcut . . . . . . . . . 218 179. Find out who you are! . . . . . . . . . . . . . . . . . . . 219 180. Install Ubuntu partner software . . . . . . . . . . . . . . 220 181. Use a GUI version of vim . . . . . . . . . . . . . . . . . . 220 182. Rescue a crashed GUI . . . . . . . . . . . . . . . . . . . 221 183. See a quote of the day whenever you login . . . . . . . . 221 184. Make GNOME System Monitor appear when Ctrl+Alt+Delete is hit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223 185. Change your computer’s name (hostname) . . . . . . . 225 186. Reduce the Wubi boot delay . . . . . . . . . . . . . . . . 226 187. Swap around the minimize, maximize, and close buttons 226 188. Add an über-Start button to Ubuntu . . . . . . . . . . . 227 189. View technical details of PDF ﬁles . . . . . . . . . . . . 228 190. Connect to a remote computer as if you are sitting in front of it . . . . . . . . . . . . . . . . . . . . . . . . . . . 228 191. Change Ubuntu’s system sounds . . . . . . . . . . . . . 230 192. Move around the command-line like a pro . . . . . . . . 231 193. “Scroll” a virtual console . . . . . . . . . . . . . . . . . . 232 194. Do math at the command-line . . . . . . . . . . . . . . . 233 195. Create keyboard shortcuts that use the “Windows” key 234 196. Create a text ﬁle without a text editor . . . . . . . . . . 235 197. Turn off the OpenOfﬁce.org splash screen . . . . . . . . 236 198. See which virtual console you’re working at . . . . . . . 236 Report erratum Prepared exclusively for J.S. Ash this copy is (B2.0 printing, July 15, 2008) CONTENTS 11 199. Periodically change the desktop wallpapers . . . . . . . 237 200. Get warned when sudo powers hang around . . . . . . 237 201. Add a “similar words” sidebar to Dictionary . . . . . . . 238 202. Add drop shadows to screenshots . . . . . . . . . . . . 238 203. Create a backup ISO image of almost any physical CD/DVD 239 204. Change Firefox’s spellchecker language . . . . . . . . . 239 205. Take full control of Ubuntu’s PulseAudio sound output 240 206. Sleep, hibernate, shutdown, or reboot from the command- prompt . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241 207. Mirror commands and output across different terminal windows . . . . . . . . . . . . . . . . . . . . . . . . . . . 241 208. Instantly view a load of images as a slideshow . . . . . 242 209. Use a Windows-style “Start” button and taskbar . . . . 243 210. Change your password . . . . . . . . . . . . . . . . . . . 245 211. Convert hex to decimal (and vice versa) . . . . . . . . . 246 212. Quickly save pictures on websites . . . . . . . . . . . . 247 213. Quickly send web links by email . . . . . . . . . . . . . 247 214. Sharpen images at the command line . . . . . . . . . . 248 215. View PDFs at the command line . . . . . . . . . . . . . . 249 216. Run Windows programs under Ubuntu . . . . . . . . . 249 217. Uninstall Ubuntu if Wubi has been used . . . . . . . . 252 218. See a visual representation of ﬁle and folder locations . 252 219. Create text banners . . . . . . . . . . . . . . . . . . . . . 254 220. Use a Macintosh OS X-like Dock . . . . . . . . . . . . . 255 221. Process words at the command-line . . . . . . . . . . . 256 222. View a calendar at the command prompt . . . . . . . . 258 223. Repair Ubuntu ﬁle system errors . . . . . . . . . . . . . 258 224. Clone your Ubuntu installation onto a new hard disk . 259 225. Create a boot log to help solve startup problems . . . . 264 226. Install a personal FTP server for ﬁle sharing . . . . . . 265 227. Shutdown, reboot, hibernate, or sleep Ubuntu with a single click . . . . . . . . . . . . . . . . . . . . . . . . . . 268 228. Delete ﬁles rather than trash them . . . . . . . . . . . . 269 229. Yank a USB key stick even if you’re told you shouldn’t 270 230. Rename many ﬁles at once (a.k.a. bulk rename) . . . . 270 231. Get an alternative media player . . . . . . . . . . . . . . 272 232. Compare two ﬁles to see if they’re different . . . . . . . 276 233. Use the mouse at the virtual console (complete with copy & paste) . . . . . . . . . . . . . . . . . . . . . . . . 276 234. See a progress display as the desktop loads . . . . . . . 277 235. Get free-of-charge Ubuntu CDs . . . . . . . . . . . . . . 278 Report erratum Prepared exclusively for J.S. Ash this copy is (B2.0 printing, July 15, 2008) CONTENTS 12 236. Make the GNOME Terminal window translucent . . . . 278 237. Automate the download and installation of new theme components . . . . . . . . . . . . . . . . . . . . . . . . . 279 238. Burn Ubuntu CD images (ISOs) using Windows—for free 280 239. Quickly create links to ﬁles, folders, and/or applications 281 240. Monitor CPU usage . . . . . . . . . . . . . . . . . . . . . 282 241. See whenever Caps Lock is active . . . . . . . . . . . . . 283 242. Make ﬁles and folders entirely private . . . . . . . . . . 283 243. Get quick access to stuff you’re working on . . . . . . . 284 244. Insert command-line output and ﬁles into the clipboard 285 245. Have a cow talk to you . . . . . . . . . . . . . . . . . . . 286 246. Get notiﬁed when new mail arrives . . . . . . . . . . . . 286 247. Increase output “remembered” by GNOME Terminal . 287 248. Use Ubuntu’s version of Microsoft Paint . . . . . . . . . 288 249. Have OpenOfﬁce.org save in Microsoft Ofﬁce format by default . . . . . . . . . . . . . . . . . . . . . . . . . . . . 288 250. Password-protect and encrypt ﬁles . . . . . . . . . . . . 289 251. Add notes to any ﬁle/folder . . . . . . . . . . . . . . . . 293 252. Encrypt ﬁles so that only the recipient can open them 294 253. See your ﬁle browsing history . . . . . . . . . . . . . . . 295 254. Deﬁne your own menu shortcut keys . . . . . . . . . . 295 255. Always know your IP address . . . . . . . . . . . . . . . 296 256. See the size of ﬁles/folders on the desktop . . . . . . . 297 257. View technical details of any multimedia ﬁle . . . . . . 297 258. Convert PDFs and images to Macromedia Flash slideshows 298 259. Create an alias to save typing long commands . . . . . 299 260. Send genuine smileys in your emails . . . . . . . . . . . 300 261. Add an “Open in terminal” option to Nautilus’ right- click menu . . . . . . . . . . . . . . . . . . . . . . . . . . 301 262. Make Windows bootable if things go wrong during Ubuntu installation . . . . . . . . . . . . . . . . . . . . . . . . . . 301 263. Edit the name & artist information of MP3 ﬁles . . . . . 302 264. Never touch the mouse while using Ubuntu (well, almost) 303 265. Alter image viewer’s zoom speed . . . . . . . . . . . . . 304 266. Install Skype . . . . . . . . . . . . . . . . . . . . . . . . . 304 267. Arrange output into columns . . . . . . . . . . . . . . . 305 268. View images without a graphical environment . . . . . 306 269. Synchronize ﬁles between a laptop and desktop PC . . 306 270. Rename ﬁles quickly . . . . . . . . . . . . . . . . . . . . 310 271. Have sudo insult you . . . . . . . . . . . . . . . . . . . . 311 272. Make Nautilus display “traditional” ﬁle permissions . . 312 Report erratum Prepared exclusively for J.S. Ash this copy is (B2.0 printing, July 15, 2008) CONTENTS 13 273. See the GNOME ﬁsh . . . . . . . . . . . . . . . . . . . . 312 274. Use desktop widgets . . . . . . . . . . . . . . . . . . . . 313 275. Read eBooks . . . . . . . . . . . . . . . . . . . . . . . . . 315 276. Make (almost) any wiﬁ card work with Ubuntu . . . . . 316 277. Connect to a Windows Vista computer’s remote desktop 321 278. Use Ubuntu on your games console . . . . . . . . . . . 322 279. Use a “legal” MP3 codec . . . . . . . . . . . . . . . . . . 322 280. Use look-a-likes of the Microsoft fonts . . . . . . . . . . 323 281. Play old MS-DOS games . . . . . . . . . . . . . . . . . . 324 282. Install Google applications . . . . . . . . . . . . . . . . . 325 283. Install MS Comic Sans-style fonts . . . . . . . . . . . . 329 284. Use alternative ofﬁce applications . . . . . . . . . . . . 329 285. Have the Firefox robot talk to you . . . . . . . . . . . . . 332 286. Backup your data . . . . . . . . . . . . . . . . . . . . . . 332 287. Use the Ubuntu install CD as a general-purpose parti- tioning tool . . . . . . . . . . . . . . . . . . . . . . . . . . 337 288. Give old Macintosh computers a new lease of life . . . . 337 289. Use absolutely any picture as an icon . . . . . . . . . . 338 290. Install the GNOME wallpapers . . . . . . . . . . . . . . 338 291. Zoom in for more info in Nautilus . . . . . . . . . . . . . 339 292. Play MP3/Ogg ﬁles at the command-line . . . . . . . . 339 293. Optimize Ubuntu’s performance . . . . . . . . . . . . . 340 294. Tweak Ubuntu into oblivion . . . . . . . . . . . . . . . . 341 295. Do just about anything to a ﬁle by right-clicking it . . . 343 296. Get notiﬁed of new Gmail messages . . . . . . . . . . . 346 297. OCR scanned text . . . . . . . . . . . . . . . . . . . . . . 347 298. Use Ubuntu’s movie player to watch YouTube movies . 349 299. Turn your desktop into your /home folder . . . . . . . 349 300. Avoid programs quitting when the terminal is closed . 350 301. Allow Terminal Server Client to access VNC desktops . 350 302. Search all of Ubuntu’s “supported” software . . . . . . 351 303. Install Windows on a computer that has Ubuntu on it . 351 304. Turn your computer into a egg timer . . . . . . . . . . . 354 305. Create a portable USB stick installation of Ubuntu . . 355 306. Enhance the copy and paste clipboard . . . . . . . . . . 359 307. Be told when your tea has brewed . . . . . . . . . . . . 360 308. Avoid bad formatting when viewing OpenOfﬁce.org ﬁles on Windows . . . . . . . . . . . . . . . . . . . . . . . . . 361 309. Fix USB key sticks that wrongly report they’re full . . . 361 310. Use Ubuntu’s built-in download manager . . . . . . . . 362 311. Avoid an F-Spot startup error . . . . . . . . . . . . . . . 364 Report erratum Prepared exclusively for J.S. Ash this copy is (B2.0 printing, July 15, 2008) CONTENTS 14 312. Record your desktop . . . . . . . . . . . . . . . . . . . . 364 313. Take screenshots in any format . . . . . . . . . . . . . . 365 314. Where’s traceroute? . . . . . . . . . . . . . . . . . . . . . 366 315. Automatically scroll PDF ﬁles . . . . . . . . . . . . . . . 366 Index 367 Report erratum Prepared exclusively for J.S. Ash this copy is (B2.0 printing, July 15, 2008) Bug #1 in Ubuntu’s bug database: https://launchpad.net/ubuntu/+bug/1 “Microsoft has a majority market share in the new desktop PC marketplace. This is a bug, which Ubuntu is designed to ﬁx.” Mark Shuttleworth, Ubuntu founder Chapter 1 Introduction This book was born out of an experiment carried out when Ubuntu 6.06 was released in 2006. Back then Ubuntu was rougher around the edges than it is today. Getting MP3 ﬁles to play took some effort. Only a handful of wiﬁ cards worked out of the box and the rest had to be wrangled into working. So I wrote 25 tips to get Ubuntu working the way I felt it should. I also looked at some cool things that could be done with Ubuntu—the kind of things that wowed people passing by your computer. Everything was kept simple because I knew a high proportion of Ubuntu users had switched from Windows, where things were done differently. Many of the tips were pulled from my award-winning book, Beginning Ubuntu Linux. I put the tips on my website and then posted a link to the page on the Digg.com social networking website. Within hours it was in the top 10 links for that day. My site was actually knocked ofﬂine by the sheer volume of visitors. The popularity of the tips was partly because Ubuntu has always been popular with the Digg.com crowd, but there was a more important rea- son. People wanted Ubuntu to "just work". They brought with them the expectations of Windows users. They didn’t want to make any compro- mises, either in terms of usability or function. And they wanted to learn how Ubuntu worked. They wanted that above all, in fact. Ubuntu Kung Fu is for those people, and others like them. It’s an Ubuntu book for the rest of us. In its pages you’ll ﬁnd over 300 tips that: Prepared exclusively for J.S. Ash H OW TO READ THIS BOOK 16 1. Make Ubuntu more usable for newcomers and experienced users alike; 2. Point out cool and often extraordinary things that Ubuntu can do; 3. Show how Ubuntu can be fun. Along the way you’ll pick up many skills that will make you a more proﬁcient Ubuntu user. If you’d like to share some of the tips from this book on your blog then feel free. I’m not sure my publishers will be too happy if you take liberties, but sharing a handful of tips you’ve found useful with others can only be a good thing. If you do, it would be great if you could link to http://www.ubuntukungfu.org, the community site that partners this book (if you’re feeling generous, you might also link to the book’s ofﬁcial webpage—http://pragprog.com/titles/ktuk). 1.1 How to read this book In a nutshell, Ubuntu Kung Fu is a big book of tips. As such I don’t recommend any particular way of reading it. You don’t need to be sitting beside your computer to do so. The whole point of Ubuntu Kung Fu is that you can jump in anywhere. Start at the beginning or start in the middle. You could even start at the end and work your way to the front. Just start reading. If you ﬁnd a tip you like then try it! Ubuntu Kung Fu expects no prior Linux or Ubuntu experience from its readers. That doesn’t mean all the tips are beginner-level. Some are more involved than others and a handful are written for experienced users. But in every tip I walk the reader through each step of the way. I’ve also provided a crash-course in Ubuntu administration skills in the second chapter of the book. This should get even the greenest of newbies up to speed quickly. Before you dive into the tips I need to mention some caveats. Some of the tips affect your system in a profound way. Conﬁguration ﬁles are edited, for example, and one wrong keystroke could mean disaster (although it’s nearly always possible to ﬁx things—this is discussed in Chapter 2, An Ubuntu administration crash course, on page 19). Be sure to read through a tip before attempting anything it says. Check what you type or click against what’s written. Report erratum Prepared exclusively for J.S. Ash this copy is (B2.0 printing, July 15, 2008) A CKNOWLEDGEMENTS 17 If you’re unsure about what you’re doing then skip that particular tip and perhaps come back to it later. If you spot anything that doesn’t seem to work, and you think it should, contact http://pragprog.com/titles/ktuk/errata. Provide as many details as possible. If possible, as well as correcting the tip in question, I’ll thank you in a future edition of Ubuntu Kung Fu. Additionally, head over to the forums at www.ubuntukungfu.org and see if a member of the Ubuntu Kung Fu community can help you ﬁgure out what went wrong. Secondly, please note that this book was written using Ubuntu 8.04.1 LTS (Hardy Heron) as a base. As with all releases of Ubuntu, this brings a handful of small but important changes in the way system conﬁgu- ration is handled. If you haven’t already, I strongly advise you upgrade to 8.04.1 if you’re using an earlier version of Ubuntu. If you’re using a later version of Ubuntu then you might have to occasionally apply some common-sense. Lastly, please note that the tips concentrate on productivity, enhance- ments and doing cool stuff. I’ve deliberately steered-clear of provid- ing work-arounds for bugs or gotchas. This is because the tips would become dated very quickly as the bugs are ﬁxed or patched, or ofﬁ- cial work-arounds are introduced. If you run up against something in Ubuntu that doesn’t work the way it should, you ﬁrst port of call should be the ofﬁcial Ubuntu forums—www.ubuntuforums.org—where it’s very likely somebody will have posted a solution. 1.2 Acknowledgements Thanks go to Pragmatic Programmers for not slamming the door in the face of a crazy guy who suggested a one-chapter book full of things he thinks are cool. Thanks go to Jackie Carter, my editor, plus Pragmatic Programmer overlords Andy and Dave for their patience, guidance and encouragement. I’ve never met such switched-on, optimistic and gen- uinely agile people in over a decade of working in publishing. To para- phrase Simon & Garfunkel, they’ve got a groovy thing going on. Thanks also to the small army of technical reviewers who put this book through its paces prior to release and often suggested impor- tant improvements. My gratitude goes to John Dong, Matthew Helmke, Eric Hewitt, Carthik Sharma, John Southern, and Aaron Porter. There’s some astonishingly large brains in that list. A zombie would have a Report erratum Prepared exclusively for J.S. Ash this copy is (B2.0 printing, July 15, 2008) A CKNOWLEDGEMENTS 18 feast. I’m honored that they all agreed to give this book the beneﬁt of their experience and knowledge. Finally, thanks to the beta testers who took a chance on this book before it was ofﬁcially published. Your errata comments made Ubuntu Kung Fu a stronger book. —Keir Thomas, September 2008 Report erratum Prepared exclusively for J.S. Ash this copy is (B2.0 printing, July 15, 2008) Chapter 2 An Ubuntu administration crash course There’s a time when all of us sit down in front of Ubuntu for the ﬁrst time. The African drum beats of the login sound fade away and we’re greeted by the orange and browns of the desktop wallpaper. (Orange and brown? What were they thinking?) What goes through your mind following this probably depends on how busy you are. To quote from Peter Pan, Ubuntu can be an “awfully big adventure.” But for that to be true you have to be the kind of person who enjoys adventures. I suspect most people simply want to know what’s what, and how things work. That’s what this chapter is about. It’s a crash course in basic Ubuntu skills and knowledge. It’s the mechanic’s guide that tells you which end of a screwdriver is the useful one, and how to use it. It’s necessary because you’ll have to get your hands dirty under the hood of Ubuntu, not only to follow the tips in this book, but as part of day-to-day life with the operating system. There are certainly more comprehensive introductory guides to Ubuntu (I recommend Beginning Ubuntu Linux, Third Edition, written by myself and Jaime Sicam). However, if you have little time to spare, or just a brief attention span, this chapter will give you enough know-how to get by. You might have to read it more than once, and maybe come back to it later. That’s ﬁne. It isn’t going anywhere. Even if you’re an experienced Ubuntu user it might be worth skimming through this chapter to ensure you know enough to proceed to the Prepared exclusively for J.S. Ash T HE U BUNTU DESKTOP 20 tips ahead. I’d ask that you pay particular attention to the section that describes how to use gconf-editor, which is used extensively in some of the tips. This is a lesser-known but very useful conﬁguration tool. So let’s get to it. 2.1 The Ubuntu desktop Before we get down to speciﬁcs, let’s take an overview of the Ubuntu desktop. If you’ve already spent time playing around with the desktop then you can probably skip this part. You ﬁrst thing you might notice is that it’s virtually icon-free. This is just because the Ubuntu developers don’t like clutter. You can drag and drop icons onto the desktop and get it as messy as you wish. At the top and bottom of the screen are the panels. These are almost identical to Windows’ taskbar, except that there are two of them. The one at the top tends to be about running software and presenting infor- mation to the user. The one at the bottom is where programs minimize to, and contains a Show Desktop button (left) and Trash icon (right), along with a virtual desktop switcher (far right). On the top panel there are three menus—Applications, Places, and Sys- tem. These will always stick around, no matter what. An application’s own menus (File, Edit, View etc.) will appear underneath. The Applications menu contains the software you use on a day-to- day basis—media players, ofﬁce applications, calculator, and so on. However, software used to administrate the software isn’t found there. That’s on the System menu, which has two sub-menus—Preferences, and Administration. Preferences lists programs that tweak settings spe- ciﬁc to your user account, such as changing the desktop wallpaper. Administration lists programs that conﬁgure the overall system. Programs on the System → Administration menu won’t run unless you type your login password when prompted. I explain more about this on page 22. The Places menu provides quick access to the ﬁle system, or to any other ﬁle system that is attached to your computer, such as your Win- dows partition, or USB memory sticks that are plugged in. See Fig- ure 2.1, on the following page for an example. The Windows partition will probably be identiﬁed as x GB Media, where x is the size of the Report erratum Prepared exclusively for J.S. Ash this copy is (B2.0 printing, July 15, 2008)

Tải về miễn phí