Question

我创建了一个脚本，可以帮助管理员在文本文件中添加和删除用户，而不是手动执行。我遇到了这个错误，我无法解决它。

[ec2-user@ip-172-31-15-55 ~]$ ./account-manager user add
./account-manager: line 21: syntax error near unexpected token `then'
./account-manager: line 21: `   then'

我该如何解决此错误？

#!/bin/bash

file=$1
action=$2

if [ -z "$file" ]
then
        echo " Please enter a file with your users"
        exit 0
fi

if [ -z "$action" ]
then
        echo " Please define an account to remove or deleete"
        exit 0
fi

for user in `cat $file`
do
        if[ "$action" == "add" ]
        then
                echo adding user: $user
                useradd $user -m -p password
        fi
        if[ "$action" == "remove" ]
        then
                echo removing user: $user
                userdel -r $user
        fi

done

Answer 1

您应该在第20行和第25行的if和[之间添加一个空格。您的代码应该是这样的。

#!/bin/bash

file=$1
action=$2

if [ -z "$file" ]
then
        echo " Please enter a file with your users"
        exit 0
fi

if [ -z "$action" ]
then
        echo " Please define an account to remove or deleete"
        exit 0
fi

for user in `cat $file`
do
        if [ "$action" == "add" ]
        then
                echo adding user: $user
                useradd $user -m -p password
        fi
        if [ "$action" == "remove" ]
        then
                echo removing user: $user
                userdel -r $user
        fi

done

Answer 2

注意if语句的间距，使用http://www.shellcheck.net/之类的工具来了解您可能犯错的位置。

意外令牌附近的语法错误`then'

2 个答案: