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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"

Rename files in batch

Ultimate current directory usage command
Based on the MrMerry one, just add some visuals to differentiate files and directories

archlinux: check which repository packages have updates available
Shows which packages from the official repositories (not aur) have updates available. For most accurate output, the mirrors and package lists should be up to date.

list directories only

Force the script to be started as root
Place this code at the beginning of your script to ensure that it can only be executed by the root.

save date and time for each command in history
for the change stay in your history file , export command by writing it into your .bashrc

Figure out your work output for the day
Figures out what has changed in the last 12 hours. Change the author to yourself, change the time since to whatever you want.

ls -qaltr # list directory in chronological order, most recent files at end of list
I find it very handy to be able to quickly see the most recently modified/created files in a directory. Note that the "q" option will reveal any files with non-printable characters in their filename.

Dump bash command history of an active shell user.


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