Basic Shell Commands (Terminal Commands)

cat, cd, cp, echo, ls, mkdir, rm, rmdir, touch

Less commonly used: htop, man, uname,

cp:

# Copy a file
cp source.txt destination.txt

# Copy a directory
cp -r source destination

Command Substitution

This is command substitution. It runs the command inside the parentheses and substitutes the output in its place.

$(...)