You can use $# to check the number of arguments passed to your script. To access individual arguments, use $1 for the 1st argument, $2 for the second argument so on and so forth.
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## Create a script cat << 'EOF' > file.sh #!/bin/bash if [ $# -eq 0 ];then echo "No arguments supplied" else echo "$# arguments passed of which 1st argument is $1" fi EOF ## Execute the script (without arguments) ./file.sh ## Returns No arguments supplied ## Execute the script (with arguments) ./file.sh 1 2 3 4 ## 4 arguments passed of which 1st argument is 1 |