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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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Synchronize date and time with a server over ssh
Set Remote Server Date using Local Server Time (push)

Show directories in the PATH, one per line
Shorter version.

Mortality Countdown
watch the seconds of your life tick away - replace YYYY-mm-dd HH:MM:ss w/ your birthtime.

View facebook friend list [hidden or not hidden]
There's no need to be logged in facebook. I could do more JSON filtering but you get the idea... Replace u=4 (Mark Zuckerberg, Facebook creator) with desired uid. Hidden or not hidden... Scary, don't you?

Delete all git branches except master
Delete all your branches except master (useful after archiving branches)

dont execute command just add it to history as a comment, handy if your command is not "complete" yet

Define shell variable HISTIGNORE so that comments (lines starting with #) appear in shell history
I was surprised to find that with RedHat bash, I could not find any comment lines (begining with #) in my bash shell history. Surprised because in Mageia Linux this works. It turns out that RedHat's bash will keep comment lines if in my .bashrc, I define: export HISTIGNORE=' cd "`*: PROMPT_COMMAND=?*?' Why have comment lines in shell history? It's a handy and convenient way to make proto-commands (to be completed later) and for storing brief text data that is searchable in shell history.

Install pip with Proxy
Installs pip packages defining a proxy

List your sudo rights
List the commands you have the right to use with sudo.

ping a range of IP addresses
nmap accepts a wide variety of addressing notation, multiple targets/ranges, etc.


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