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kill some pids without specific pid
pgrep, pkill - look up or signal processes based on name and other attributes

Generat a Random MAC address

Annotate tail -f with timestamps
Uses the command ts in order to add a timestamp on each line. This command is provided in the moreutils package on Debian, and you may need libtime-duration-perl to be able to format the date.

Pipe STDOUT to vim
The hyphen tells vim to open from STDOUT - saves having to create temporary files.

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 all files in lower case
rename is a really powerfull to, as its name suggests, rename files

Google text-to-speech in mp3 format

background a wget download

Update all Docker Images

Selecting a random file/folder of a folder
Also looks in subfolders


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