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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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create a nicely formatted example of a shell command and its output
Shell function which takes a bash command as its input, and displays the following formatted output: EXAMPLE: command OUTPUT: output from command

nmap fast scan all ports target

execute a command in case of success or execute a command in case of failure

Display HTTP-header using curl

Rename files in batch

Kill google chrome process
This one liner is to kill all google chrome tabs. This works similar to $ killall firefox command which is to kill all firefox processes.

Upgrade all perl modules via CPAN

Print interface that is up and running

Find the biggest files
Show the top 10 file size

Converts uppercase chars in a string to lowercase
Another alternative is to define a function: lower() { echo ${@,,} } lower StrinG


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