Commands using ls (517)

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check open ports without netstat or lsof

Configuring proxy client on terminal

Prints any IP out of a file

Watch the size of a directory using figlet
You can substitute /home/$USER with any path you like.

Lookup your own IPv4 address

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"

adjust laptop display hardware brightness [non root]

Set RGB gamma of secondary monitor
This command first determines whether a second screen is connected. If this is the case, it sets the screen's RGB gamma via xrandr. Useful for cheap or slightly defective monitors with a tint. In this example a yellowing/champagne color deviation is compensated for by decreasing the red and the green portion of the image.

Dump a web page
Useful to browse dangerous web sites.

Super Speedy Hexadecimal or Octal Calculations and Conversions to Decimal.
^Hexadecimal Ten minus Octal Ten is Eight(in Decimal). $ echo "$(( 0xaf )) = $(( 0257 ))" ^Hexadecimal AF and Octal 257 are both Decimal 175.


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