After years of working as a Linux sysadmin, I have collected a set of tips and tricks that I wish someone had told me at the start of my career. Here are my top picks.
1. Use tmux. Never lose a running process because your SSH connection dropped again.
2. Master rsync. It is faster and more reliable than scp for large file transfers.
3. Learn awk and sed. These tools can replace entire scripts with a single line.
These small habits compound over time and make you significantly more productive on the command line.