> I recently learned(1) that when you When you write if [ -e /etc/passwd ]; then .. that bracket is not shell syntax but just a regular command with a funny nam

> I recently learned(1) that when you When you write if [ -e /etc/passwd ]; then .. that bracket is not shell syntax but just a regular command with a funny name. That’s how it used to be. Nowadays, most of the time it is a built-in, not it‘s own executable anymore.