Commands by tebeka (7)

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Get current Xorg resolution via xrandr

Quickly generate an MD5 hash for a text string using OpenSSL
Here Strings / A variant of here documents, the format is:

check open ports without netstat or lsof

Copy text to the clipboard
Great for little scripts that dig up obscure info that you are going to have to paste into another app anyway.

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"

A DESTRUCTIVE command to render a drive unbootable
Overwrites the boot sector. Since this doesn't overwrite any data, you can usually recover by re-creating the partition table exactly the same as before you zeroed it. This can also help sometimes if you install a new drive in a Windows machine which can't read it.

Recursively chmod all dirs to 755 and all files to 644

List only directories, one per line
Alternatively, $ ls -F | grep /\$ but will break on directories containing newlines. Or the safe, POSIX sh way (but will miss dotfiles): $ for i in *; do test -d "./$i" && printf "%s\n" "$i"; done

Job Control
background and disown, but with a proper one-line syntax

Run a command when a file is changed


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