bash count number of command line arguments code example

Example 1: bash parameter count

# use $#

# say if you are expecting exactly 2 parameters
# -ne is bash's way of saying not equal
if [[ "$#" -ne 2 ]]; then
	echo "this script needs exactly 2 parameters"
    exit 1
 fi

Example 2: bash count number of arguments

The number of arguments is $#