sh add option

./myscript.sh arg1 arg2 arg3

#!/bin/bash

for option in "$@"; do
  case "${option}" in
    -e)
      echo "Option -e is selected."
      # 在这里添加 -e 选项的操作
      ;;
    -h)
      echo "Option -h is selected."
      # 在这里添加 -h 选项的操作
      ;;
    *)
      echo "Invalid option: ${option}"
      exit 1
      ;;
  esac
done

#!/bin/bash

while getopts ":eh" option; do
  case "${option}" in
    e)
      echo "Option -e is selected."
      # 在这里添加 -e 选项的操作
      ;;
    h)
      echo "Option -h is selected."
      # 在这里添加 -h 选项的操作
      ;;
    \?)
      echo "Invalid option: -$OPTARG"
      exit 1
      ;;
    :)
      echo "Option -$OPTARG requires an argument."
      exit 1
      ;;
  esac
done

前面一个：当出现不存在选项时报错，后面：表示可以添加字符串