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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"

Produce 10 copies of the same string

Decrypt exported android wallet keys for import into desktop client (LTC,FTC,BTC)

encode a text to url_encoded format
usefull for posts via wget

Block the 6700 worst spamhosts
The above url contains over 6700 of the common ad websites. The command just pastes these into your /etc/hosts.

list files recursively by size

Nicely display permissions in octal format with filename
Since the original command (#1873) didn't work on FreeBSD whose stat lacks the "-c" switch, I wrote an alternative that does. This command shows also the fourth digit of octal format permissions which yields the sticky bit information.

Change user, assume environment, stay in current dir
I've used this a number of times troubleshooting user permissions. Instead of just 'su - user' you can throw another hyphen and stay in the original directory.

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

Easily search running processes (alias).


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