One Liners

Linux and Bash One Liners

Command Line Fu – Top One Liners

• Thu, 17 Feb 2011 11:13:19 +0000: Put a console clock in top right corner - All commands sorted by votes
  $ while sleep 1;do tput sc;tput cup 0 $(($(tput cols)-29));date;tput rc;done &
  A nice way to use the console in full screen without forget the current time. you can too add other infos like cpu and mem use.
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  • View all commands by glaudiston

  

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• Fri, 23 Jul 2010 03:33:46 +0000: type partial command, kill this command, check something you forgot, yank the command, resume typing. - All commands sorted by votes
  $ <ctrl+u> [...] <ctrl+y>
  Example : vim /etc/fstab ## damn <ctrl+u> sudo <ctrl+y> ## like a boss. Example 2 : sudo vim /root/bin/ ##uh... autocomplete doesn't work... <ctrl+u> sudo ls /root/bin ##ah! that's the name of the file! <ctrl+y> sudo vim /root/bin/ ##resume here! Thanks readline!
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• Wed, 21 Apr 2010 13:10:33 +0000: Get your external IP address - All commands sorted by votes
  $ curl ifconfig.me
  curl ifconfig.me/ip -> IP Adress curl ifconfig.me/host -> Remote Host curl ifconfig.me/ua ->User Agent curl ifconfig.me/port -> Port thonks to http://ifconfig.me/
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• Fri, 31 Jul 2009 16:08:59 +0000: Query Wikipedia via console over DNS - All commands sorted by votes
  $ dig +short txt <keyword>.wp.dg.cx
  Query Wikipedia by issuing a DNS query for a TXT record. The TXT record will also include a short URL to the complete corresponding Wikipedia entry.You can also write a little shell script like: $ cat wikisole.sh #!/bin/sh dig +short txt ${1}.wp.dg.cx and run it like ./wikisole.sh unix were your first option ($1) will be used as search term.
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• Fri, 10 Apr 2009 12:22:34 +0000: Close shell keeping all subprocess running - All commands sorted by votes
  $ disown -a && exit
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• Tue, 31 Mar 2009 10:29:20 +0000: Quick access to the ascii table. - All commands sorted by votes
  $ man ascii
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  • View all commands by ntheother

  

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• Thu, 26 Mar 2009 22:59:48 +0000: Watch Star Wars via telnet - All commands sorted by votes
  $ telnet towel.blinkenlights.nl
  Use Ctrl-] to stop it.
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  • View all commands by Alioth

  

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• Fri, 20 Mar 2009 22:50:06 +0000: A very simple and useful stopwatch - All commands sorted by votes
  $ time read (ctrl-d to stop)
  time read -sn1 (s:silent, n:number of characters. Press any character to stop)
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  • View all commands by mrttlemonde

  

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• Fri, 20 Mar 2009 14:18:56 +0000: currently mounted filesystems in nice layout - All commands sorted by votes
  $ mount | column -t
  Particularly useful if you're mounting different drives, using the following command will allow you to see all the filesystems currently mounted on your computer and their respective specs with the added benefit of nice formatting.
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• Fri, 20 Mar 2009 11:36:04 +0000: Place the argument of the most recent command on the shell - All commands sorted by votes
  $ 'ALT+.' or '<ESC> .'
  When typing out long arguments, such as: cp file.txt /var/www/wp-content/uploads/2009/03/ You can put that argument on your command line by holding down the ALT key and pressing the period '.' or by pressing <ESC> then the period '.'. For example: cd 'ALT+.' would put '/var/www/wp-content/uploads/2009/03/ as my argument. Keeping pressing 'ALT+.' to cycle through arguments of your commands starting from most recent to oldest. This can save a ton of typing.
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• Wed, 18 Mar 2009 17:38:49 +0000: Clear the terminal screen - All commands sorted by votes
  $ ctrl-l
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  • View all commands by mrttlemonde

  

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• Wed, 11 Mar 2009 09:26:05 +0000: Rapidly invoke an editor to write a long, complex, or tricky command - All commands sorted by votes
  $ ctrl-x e
  Next time you are using your shell, try typing ctrl-x e (that is holding control key press x and then e). The shell will take what you've written on the command line thus far and paste it into the editor specified by $EDITOR. Then you can edit at leisure using all the powerful macros and commands of vi, emacs, nano, or whatever.
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  • View all commands by fool

  

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• Tue, 03 Mar 2009 23:21:36 +0000: SSH connection through host in the middle - All commands sorted by votes
  $ ssh -t reachable_host ssh unreachable_host
  Unreachable_host is unavailable from local network, but it's available from reachable_host's network. This command creates a connection to unreachable_host through "hidden" connection to reachable_host.
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  • View all commands by patko

  

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• Thu, 19 Feb 2009 14:33:46 +0000: Make 'less' behave like 'tail -f'. - All commands sorted by votes
  $ less +F somelogfile
  Using +F will put less in follow mode. This works similar to 'tail -f'. To stop scrolling, use the interrupt. Then you'll get the normal benefits of less (scroll, etc.). Pressing SHIFT-F will resume the 'tailling'.
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  • View all commands by adamm9

  

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• Tue, 17 Feb 2009 22:53:07 +0000: Download an entire website - All commands sorted by votes
  $ wget --random-wait -r -p -e robots=off -U mozilla http://www.example.com
  -p parameter tells wget to include all files, including images. -e robots=off you don't want wget to obey by the robots.txt file -U mozilla as your browsers identity. --random-wait to let wget chose a random number of seconds to wait, avoid get into black list. Other Useful wget Parameters: --limit-rate=20k limits the rate at which it downloads files. -b continues wget after logging out. -o $HOME/wget_log.txt logs the output
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  • View all commands by starchox

  

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• Sun, 08 Feb 2009 10:10:00 +0000: output your microphone to a remote computer's speaker - All commands sorted by votes
  $ dd if=/dev/dsp | ssh -c arcfour -C [email protected] dd of=/dev/dsp
  This will output the sound from your microphone port to the ssh target computer's speaker port. The sound quality is very bad, so you will hear a lot of hissing.
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  • View all commands by morpheus

  

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• Fri, 06 Feb 2009 00:33:08 +0000: Mount a temporary ram partition - All commands sorted by votes
  $ mount -t tmpfs tmpfs /mnt -o size=1024m
  Makes a partition in ram which is useful if you need a temporary working space as read/write access is fast. Be aware that anything saved in this partition will be gone after your computer is turned off.
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  • View all commands by ajrobinson

  

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• Thu, 05 Feb 2009 20:17:41 +0000: Mount folder/filesystem through SSH - All commands sorted by votes
  $ sshfs [email protected]er:/path/to/folder /path/to/mount/point
  Install SSHFS from http://fuse.sourceforge.net/sshfs.html Will allow you to mount a folder security over a network.
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• Thu, 05 Feb 2009 18:33:23 +0000: Update twitter via curl - All commands sorted by votes
  $ curl -u user:pass -d status="Tweeting from the shell" http://twitter.com/statuses/update.xml
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  • View all commands by adamm9

  

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• Thu, 05 Feb 2009 11:57:43 +0000: Serve current directory tree at http://$HOSTNAME:8000/ - All commands sorted by votes
  $ python -m SimpleHTTPServer
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