Nix: Create A File Descriptor with Process Substitution
Process substitution can be used to create a file descriptor from the evaluation of a shell command. The syntax for process substitution is <(LIST) where ...
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Nix: PID Of The Current Shell
$ expands to the process ID of the shell. So, you can see the PID of the current shell with echo $$.
Nix: Standard output to clipboard buffer
Adding | pbcopy to the end of any command will send the standard output to your clipboard.
Nix: Open The Current Command In An Editor
If you are working with a complicated command in the terminal trying to get the arguments just right. Such as this curl:
Nix: Printing with lpr
Recently while trying to fix a printer I used lpr a bunch of times. It’s not exactly new to me, but never fails to surprise people when I use it.