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commandlinefu.com is the place to record those command-line gems that you return to again and again. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.

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Install pip with Proxy
Installs pip packages defining a proxy

updatedb for MAC OSX
MAC OSX doesn't come with an updatedb command by default, this will emulate the updatedb thats on a typical Linux OS. Simply add it to your ~/.bash_profile

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Check if a machine is online
PING parameters c 1 limits to 1 pinging attempt q makes the command quiet (or silent mode) /dev/null 2>&1 is to remove the display && echo ONLINE is executed if previous command is successful (return value 0) || echo OFFLINE is executed otherwise (return value of 1 if unreachable or 2 if you're offline yourself). I personally use this command as an alias with a predefined machine name but there are at least 2 improvements that may be done. Asking for the machine name or IP Escaping the output so that it displays ONLINE in green and OFFLINE in red (for instance).

Reduce PDF size

Launch a VirtualBox virtual machine
You can use this on your session login.

Draw kernel module dependancy graph.
parse "lsmod" output to "dot" format and pass it to "display". Without perl!

list files recursively by size

fetch all revisions of a specific file in an SVN repository
exported files will get a .r23 extension (where 23 is the revision number)


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