Commands by douglas (1)

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most used unix commands

See entire packet payload using tcpdump.

Recursive search and replace (with bash only)
Replaces a string matching a pattern in one or several files found recursively in a particular folder.

Convert CSV to JSON
Replace 'csv_file.csv' with your filename.

open path with your default program (on Linux/*BSD)
open [path] in the default program, regardless of which Desktop Environment you use (KDE, GNOME, etc.) Works on all "freedesktop.org" compatible desktop environments

remove repeated pairs of characters e.g. "xtxtxtxt" will become "xt"
This will remove repeated characters e.g. echo "xtxtxtxt" | sed -ru 's/(..)\1{2,}/\1/g' the output will just be "xt"

Find top 10 largest files

Create an easy to pronounce shortened URL from CLI
Shorter regex.

Reverse ssh
Both hosts must be running ssh and also the outside host must have a port forwarded to port 22.

To print a specific line from a file
You can get one specific line during any procedure. Very interesting to be used when you know what line you want.


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