check openconnect-install?

[alanhe421]

Workflow Name: [e.g. Surge] vpn

检查本地是否安装，没有的话，直接执行安装。

好处就是workflow自动实现安装，降低使用成本

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[alanhe421]

针对查询命令没有安装也可以形成通用解决方案

[alanhe421]

如果命令存在，-z为false z是判断是否为0

#!/bin/bash
OPENCONNECT_CMD=$(which openconnect)
 if [  -z  $OPENCONNECT_CMD  ];  then
  echo "<?xml version='1.0'?><items><item arg='openconnect'><title>OpenConnect is required</title><subtitle>enter to install</subtitle></item></items>"
else
  echo "<?xml version='1.0'?><items><item arg=''><title>OpenConnect VPN</title><subtitle>enter to connect</subtitle></item></items>"
 fi