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Advanced python tracing
Trace python statement execution and syscalls invoked during that simultaneously

A rainbow-colored Tux gives a fortune cookie for the day. Great

Show numerical values for each of the 256 colors in bash
I like the other three versions but one uses nested loops and another prints every color on a separate line. Both versions fail to reset colors before giving the prompt back. This version uses the column command to print a table so all the colors fit on one screen. It also resets colors back to normal before as a last step.

use the previous commands params in the current command
Here the !!:1 will take the first parameter from the previous command. This can be used in conjunction with other history commands like ! and so on.

Split lossless audio (ape, flac, wav, wv) by cue file

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"

Figure out what shell you're running

Label EXT2/EXT3 File System

Selecting a random file/folder of a folder
Also looks in subfolders

Calculate days on which Friday the 13th occurs (inspired from the work of the user justsomeguy)
Friday is the 5th day of the week, monday is the 1st. Output may be affected by locale.


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