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using scanner device from command line
you have to replace "mustek_usb" with the scanner found by `scanimage -l`

Replace + Find

Display a random man page
I'm not sure why you would want to do this, but this seems a lot simpler (easier to understand) than the version someone submitted using awk.

Sysadmin day date of any given year
Calculate the date of Sysadmin day (last Friday of July) of any given year

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

sleep until X o'clock
pauses exactly long enough to wake at the top of the hour

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"

Make a DVD ISO Image from a VIDEO_TS folder on MacOSX
/path/ is the root folder of the DVD, not the VIDEO_TS folder.

convert a mp4 video file to mp3 audio file (multiple files)

Remind yourself every 15 minutes (repeated reminders)
Note: 1) -n option of watch accepts seconds 2) -t option of notify-send accepts milliseconds 3) All quotes stated in the given example are required if notification message is more than a word. 4) I couldn't get this to run in background (use of & at the end fails). Any suggestions/improvements welcome.


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