linux - shell 脚本 : how to check multiple groups if they exists and display in echo

Question

这是我当前的代码:

 if [ $(getent group administrators) ]; then
   echo "Group exists"
 else
   echo "Group does not exist"
 fi

我的问题是:

• 如何改进它，使其可以包含更多要显示的组？

• 并显示组如administrators，在回显中出现:The group administrators, students exists?

Answer 1

使用&&来测试多个条件。

if [ $(getent group administrators) ] && [ $(getent group students) ]
then
    echo The groups administrators and students exit
else
    echo The groups administrators and students do not both exist
fi