Check if file or directory exists, multiple ways: https://linuxize.com/post/bash-check-if-file-exists/
Tar: compress a directory
tar -czvf name-of-archive.tar.gz /path/to/directory-or-file
Nano settings
Nano is an easy editor for the terminal. Useful options for ~/.nanorc:
set linenumbers
set softwrap
set tabsize 4Run a process in the background
Add & at the end to detach a process started in the terminal, for example npm run evaluation &, or nohup bash script.bash & so it keeps running after the terminal closes. jobs lists the running jobs for that user; from another shell use htop or ps -ef | grep bash.
References: run a Node.js server in the background, Node.js app as a background service, npm run start in the background.
Recently installed packages on Ubuntu
grep " install " /var/log/dpkg.log
