Bash Script Template

template.sh

#!/bin/bash

EXAMPLE="example default"

# Plugin variable description
PROGNAME=$(basename $0)
RELEASE="Revision 1.0.0"
AUTHOR="(c) 2020 Warlord0"

# Functions plugin usage
print_release() {
  echo "$RELEASE $AUTHOR"
}

print_usage() {
  echo ""
  echo "$PROGNAME $RELEASE - Bash Script Template"
  echo ""
  echo "Usage: $PROGNAME"
  echo ""
  echo "  -h               Show this page"
  echo ""
  echo "  -e | --example   Example argument"
  echo ""
  echo "Usage: $PROGNAME --help"
  echo ""
  exit 0
}

print_help() {
    print_usage
  echo ""
  echo "Bash script template"
  echo ""
    exit 0
}

# Parse parameters
while [ $# -gt 0 ]; do
  case "$1" in
    -h | --help)
      print_help
      exit 0
      ;;
    -v | --version)
      print_release
      exit 0
      ;;
    -e | --example)
      shift
      EXAMPLE=$1
      ;;
    *)
      echo "Unknown argument: $1"
      print_usage
      ;;
  esac
  shift
done

if [[ -z "${EXAMPLE}" || -z "${EXAMPLE}" ]]; then
  echo "Missing argument"
  exit 1
fi

# Script body goes after here