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Kills a process that is locking a file.
Useful when you're trying to unmount a volume and other sticky situations where a rogue process is annoying the hell out of you.

Create and access directory at the same time
The previous alternative dont work (the cd command was missing).

List your interfaces and MAC addresses
Requires sysfs mounted on /sys - may only be useful for Linux systems. Could also use "printf '%-8s %s\n' $(basename $f) $(cat $f/address)" instead of echo.

Find usb device in realtime
Using this command you can track a moment when usb device was attached.

Ultra fast public IP address lookup using Cloudflare's 1.1.1.1

Find the package that installed a command

Find biggest 10 files in current and subdirectories and sort by file size

concatenate compressed and uncompressed logs
with zcat force option it's even simpler.

Shortcut to find files with ease.
It looks for files that contains the given word as parameter. * case insensitive * matches files containing the given word.

regex for turning a URL into a real hyperlink (i.e. for posting somewhere that accepts basic html)
This should work with anything://url.whatever etc etc ;)


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