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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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rgrep: recursive grep without .svn
Only excludes .svn from filenames.

Change wallpaper for xfce4 >= 4.6.0
Simply changes the wallpaper of xfce4 from the command line. Not for multiple displays.

ShellCheck all the bash/sh script under a specific directory excluding version control
This is a commodity one-liner that uses ShellCheck to assure some quality on bash and sh scripts under a specific directory. It ignores the files in .git directory. Just substitute "./.git/*" with "./.svn/*" for older and booring centralized version control. Just substitute ShellCheck with "rm" if your scripts are crap and you want to get rid of them :)

add the result of a command into vi
in command mode, navigate your cursor to the line where you want the command output to appear, and hit "!!". No need to enter edit mode or even type a ":" (colon).

Convert CSV to JSON
Replace 'csv_file.csv' with your filename.

get a fresh commandlinefu-item each day as motd
Commandline-fu often has little tricks that I always forget. By adding this to the root-cron (sudo crontab -e) I lean a new trick every day.

Which processes are listening on a specific port (e.g. port 80)
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Capture data in ASCII. 1500 bytes
Sniffing traffic on port 80 only the first 1500 bytes

Grep inside Vim and navigate results
Will search for the given pattern and build a list of occurrences. Then you can use :copen and :cclose to toggle the list. When browsing the list, ENTER will take you to that line in the file.

convert Decimal to IP from stdin
https://stackoverflow.com/questions/10768160/ip-address-converter


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