Commands by cj_ (0)

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    bash: commands not found

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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"

list block devices
Shows all block devices in a tree with descruptions of what they are.

Find the package that installed a command

recursively change file name from uppercase to lowercase (or viceversa)
or, to process a single directory: $ for f in *; do mv $f `echo $f |tr '[:upper:]' '[:lower:]'`; done

Daemonize nc - Transmit a file like a http server
Allow to launch nc like a daemon, in background until you still stop it. You can stop it with kill %1 (jobs method) or kill PID. The -k option can force nc to listen another connection, but if you use redirection, it will work only one time. The loop's inside doesn't do anything, but we can imagine to send a message to screen when a connection is established

Monitor a file's size

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

convert ascii string to hex
Even adds a newline.

Switch to the previous branch used in git(1)
Very useful if you keep switching between the same two branches all the time.

capture selected window

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