Question

I am trying to provide opts to a bash script when piping the script contents to bash for execution.

#!/bin/bash

SETUP_PACKAGES=""

while getopts ":u:" opt; do
  case $opt in 
    p)
       if [[ "$OPTARG" =~ "mysql" ]] ; then SETUP_PACKAGES="$SETUP_PACKAGES mysql-client libmysqlclient-dev"; fi
       ;;

    # other parts omitted...
  esac
done

Executing the script in a shell like ./script.sh -p mysql works. The aim is to store the script in a repository so I tried curl -L example.com/my/script | bash -p mysql. This however throws /usr/bin/mysql: /usr/bin/mysql: cannot execute binary file.

What do I need to do to achieve my goal?

Answer 1

You need -s option for bash in order to set positional parameters for an interactive shell:

curl -L example.com/my/script | bash -s -p mysql