bash - 在 shell 脚本上添加用法

Question

你好，我的开发人员，所以最近我制作了这个脚本来安装和管理wireguard，所以我一直在尝试在我的shell脚本上添加一个用法，我需要一些帮助。

原始脚本 https://github.com/complexorganizations/wireguard-manager

用法： https ://github.com/complexorganizations/wireguard-manager/issues/170

我知道我犯了很多错误，有人可以看看并帮助我吗？

function usage-guide() {
  echo "usage: ./"$(basename "$0")" [OPTIONS]"
  echo "  --install     Install WireGuard Interface"
  echo "  --start       Start WireGuard Interface"
  echo "  --stop        Stop WireGuard Interface"
  echo "  --restart     Restart WireGuard Interface"
  echo "  --list        Show WireGuard Peers"
  echo "  --add         Add WireGuard Peer"
  echo "  --remove      Remove WireGuard Peer"
  echo "  --uninstall   Uninstall WireGuard Interface"
  echo "  --update      Update WireGuard Script"
  exit
}


while [ "$1" != "" ]; do
  case $1 in
  --install)
    shift
    HEADLESS_INSTALL=${HEADLESS_INSTALL:-y}=$1
    ;;
  --start)
    shift
    WIREGUARD_OPTIONS=${WIREGUARD_OPTIONS:-2}=$1
    ;;
  --stop)
    shift
    WIREGUARD_OPTIONS=${WIREGUARD_OPTIONS:-3}=$1
    ;;
  --restart)
    shift
    WIREGUARD_OPTIONS=${WIREGUARD_OPTIONS:-4}=$1
    ;;
  --list)
    shift
    WIREGUARD_OPTIONS=${WIREGUARD_OPTIONS:-1}=$1
    ;;
  --add)
    shift
    WIREGUARD_OPTIONS=${WIREGUARD_OPTIONS:-5}=$1
    ;;
  --remove)
    shift
    WIREGUARD_OPTIONS=${WIREGUARD_OPTIONS:-6}=$1
    ;;
  --uninstall)
    shift
    WIREGUARD_OPTIONS=${WIREGUARD_OPTIONS:-7}=$1
    ;;
  --update)
    shift
    WIREGUARD_OPTIONS=${WIREGUARD_OPTIONS:-8}=$1
    ;;
  esac
  shift
done
```

Answer 1

您可以像这样插入行（在底部）：

  --update)
    shift
    WIREGUARD_OPTIONS=${WIREGUARD_OPTIONS:-8}=$1
    ;;
  *)
   usage-guide
   ;;
  esac
  shift
done