Skills accumulated in Linux over the past five years (4) -- Software

Five years of experience in Linux skills (4) -- five years of experience in Linux software skills (3) -- System (below) http://www.bkjia.com/ OS /201303/196221.html 1. nautilus tips: Ctrl + L open the parent directory: Ctrl + Up www.2cto.com 2. in ubuntu's default PDF Reader evince, 'J' and 'K' can scroll up and down 3. reduce the image size to 20%: Shell code convert-resize 20% x20 % imgname newimgname 4. mplayer character playback: Shell code mplayer-vo aa xxx. avi is played with a colorless character; mplayer-vo caca xxx. avi uses color ASCII characters for playback; mplayer-vo matrixiew xxx. avi is played on a terminal like the hacker empire! 5. the software fbgrab can be used for screenshots under the command line, with a latency of 10 s: Shell code fbgrab-s 10 screen.png 6. clone the vdi file in virtualbox: Shell code VBoxManage clonevdi source. vdi target. vdi 7. easy-to-use Quick operation software: synapse 8. custom terminal auto-completion, for example, I want to automatically complete parameters for ssh, ping, and myscript commands. The parameter names are written in the/tmp/my_word_list file. make the following settings in bashrc: Shell code function _ my_cmpl () {local my_cmpl_words cur COMPREPLY = () cur = "$ {COMP_WORDS [COMP_CWORD]}" my_cmpl_words = 'cat/tmp/my_word_list 'COMPR EPLY = ($ (compgen-W "$ my_cmpl_words" -- "$ cur")} complete-F _ my_cmpl ssh ping myscript 9. ssh save session: vi/home/user name /. ssh/config (create one if no one exists), add the following content: Shell code Host * ControlMaster auto ControlPath/tmp/% r @ % h: % p save and exit. you only need to log on to the server once and then log on to the same server on the new terminal. 10. ssh goes over the wall. If you have a server in the ingress and you do not need to ssh the password, you can use ssh for port forwarding to go over the wall. With switchy on Chrome or the autoProxy plug-in on Firefox, You can freely access the internet. Use the local port 7001 as the forwarding port: Shell code ssh-qTfnN-D 7001 root @ YOUR_SERVER