cheat sheet

Postfix Mailqueue

$sudo mailq

Delete from postfix mailqueue

$sudo postsuper -d [identifier]

Read Buffer

$sudo postcat -vq [identifier]

Purge packages marked as rc (dpkg -l)

$dpkg -l | grep "^rc" | cut -d " " -f 3 | xargs sudo dpkg --purge

bunch of jpg’s into animation movie

ffmpeg -framerate 6 -start_number 1763 -i IMG_%04d.JPG -r 24 -c:v libx264 -crf 20 -pix_fmt yuv420p -vf scale=1920:1080 test-3-6fps-24fps.mp4