Commands by aperson (1)

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View the latest astronomy picture of the day from NASA.
Substitute feh for the image viewer of your choice. display (part of imagemagick) seems to be a popular choice.

Synchronise a file from a remote server
You will be prompted for a password unless you have your public keys set-up.

Create a script of the last executed command
Sometimes commands are long, but useful, so it's helpful to be able to make them permanent without having to retype them. An alternative could use the history command, and a cut/sed line that works on your platform. $history -1 | cut -c 7- > foo.sh

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

Change prompt to MS-DOS one (joke)
This one eliminates the additional backslash at the end (which is not necessary)

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

Rename files in batch

Move all comments the top of the file in vim
Python comments begin with a #. Modify to suit other languages. Other uses: Instead of m0 use m$ for end of file or d for deleting all comments.

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"

Takes an html file and outputs plain text from it


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