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Rename files in batch

check open ports without netstat or lsof

Create a new file

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

Run the last command as root
Useful when you forget to use sudo for a command. "!!" grabs the last run command.

One-liner to generate Self-Signed SSL Certificate+Key without any annoying prompts or CSRs
Handy if you want to quickly generate a self-signed certificate. Also can be used in your automated scripts for generating quick-use certificates.

List pr. command in megabytes sum of deleted files that are still in use and therefore consumes diskspace

monitor what processes are waiting for IO interrupts

Do some learning...
Just realized how needless the 'ls' has been... This version is also multilingual, since there is no need to grep for a special key word ("nothing"/"nichts"/"rien"/"nada"...). And it makes use of all the available horizontal space.

Generate an XKCD #936 style 4 word passphrase (fast)
Some snippets posted are slow on big dictionaries, this one is fast.


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