Commands using cp (115)

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List the size of all sub folders and files from the current location, with sorting

Track X Window events in chosen window
After executing this, click on a window you want to track X Window events in. Explaination: "xev will track events in the window with the following -id, which we get by greping window information obtained by xwininfo"

Generate random IP addresses
It never ends

floating point operations in shell scripts
using bc is for sissies. dc is much better :-D Polish notation will rule the world...

make directory with current date

Bash scripts encryption and passphrase-protection
This function will encrypt a bash script and will only execute it after providing the passphrase. Requires mcrypt to be installed on the system.

Verify if user account exists in Linux / Unix

Get number of users on a minecraft server
I'm flat-out surprised that minecraft directory services require servers install multiple modifications to their server code, when the directories could fetch this information on their own.

The proper way to read kernel messages in realtime.

Show the disk usage for files pointed by symbolic link in a directory
You also can sum the file usage of all files $ find /usr/lib -maxdepth 1 -type l -print0 | xargs -r0 du -Lch


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