Stupid UNIX Tricks: Find Videos You Posted To Twitter

“UNIX is basically a simple operating system, but you have to be a genius to understand the simplicity.” — Dennis Ritchie
  • for FILE in *.mp4 — This will perform a loop between do and done that will will populate $FILE for each filename that matches the *.mp4 pattern.
  • 2>&1 — This tells standard error to go to the same place standard output goes, this is so that it can be piped into…
  • pv — Pipeviewer! This is a neat command line app which shows the status of text that is flowing through it so that you know work is being done. From there, the text goes to
  • > output.txt — Where the output will be written. We are writing the results of this operation (as well as others) to a file, because inspecting a file containing the output is waaaaaay easier than having to run a time-consuming command repeatedly.
Ah, the good old days.



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Douglas Muth

Douglas Muth


Engineer. AWS, CyberSec, DMARC, Docker, Splunk, White Mage. Staffs way too many cons. he/him. 28% Cheetah.