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

Substrings a variable
substrings a variable starting at position. If no offset given prints rest of the line

ssh autocomplete
Autocomplete from .ssh/config

When was your OS installed?
Show time and date when you installed your OS.

Perform sed substitution on all but the last line of input
In this simple example the command will add a comma to the end of every line except the last. I found this really useful when programatically constructing sql scripts. See sample output for example.

Programmatic way to find and set your timezone
1. it find your public ip via ifconfig.io 2. than use this IP to request your timezone via worldtimeapi.org 3. and send it to the command timedatectl set-timezone

ZSH prompt. ':)' after program execution with no error, ':(' after failure.
sorry for my english

Encrypted archive with openssl and tar
command to decrypt: $ openssl enc -aes-256-cbc -d < secret.tar.enc | tar x Of course, don't forget to rm the original files ;) You may also want to look at the openssl docs for more options.

Google Translate
allow multiword translations

For a $FILE, extracts the path, filename, filename without extension and extension.
Useful for use in other scripts for renaming, testing for extensions, etc.


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