Commands by kalaxy (3)

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Outputs each arg on its own line
This can be useful for transforming command-line args into input for xargs (one per line). This can also be done with ls if the args are filenames, but that's getting awfully close to Useless Use of Cat territory (http://partmaps.org/era/unix/award.html).

Show directories in the PATH, one per line
The output of "echo $PATH" is hard to read, this is much easier. The parentheses ensure that the change to the input field separator (IFS) only happens the the sub shell and not affecting the current shell.

List known debian vulnerabilities on your system -- many of which may not yet be patched.
You can search for CVEs at https://security-tracker.debian.org/tracker/ or use --report to get full links. This can be added to cron, but unless you're going to do manual patches, you'd just be torturing yourself.

check open ports without netstat or lsof

Get your current Public IP

Sort files by date
Show you the list of files of current directory sorted by date youngest to oldest, remove the 'r' if you want it in the otherway.

diff 2 remote files

Check the hard disk vendor and model on Apple Mac

bash pause command
Just added -sn1 -s = silent -n1 = only one symbol needed to continue after the insert

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

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