Simple function in shell script

function.sh

show() {
    if [ "$1" = "Sandbox" ]; then
        echo "pip install -r /path/to/sandbox.txt"
    elif [ "$1" = "Staging" ]; then
        echo "pip install -r /path/to/staging.txt"
    else
        echo "pip install -r /path/to/local.txt"
    fi; 
}

show Sandbox
show Staging
show Lalalala