bash shell脚本中的su命令
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/25619734/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
su command in shell script
提问by user3331975
I have a script which copies a file, then untar and install it (agent-service) on multiple systems (IPs are read from systems.txt file). In the script, I wanted to start the agent-service as user "test". However after the script execution, when I check the target system, the agent-service is shown as running as "root" user. What could be wrong here? Am I not using su command correct within the script?
我有一个脚本，它复制一个文件，然后解压并在多个系统上安装它（代理服务）（IP 从 systems.txt 文件中读取）。在脚本中，我想以用户“test”的身份启动代理服务。但是，在脚本执行后，当我检查目标系统时，代理服务显示为以“root”用户身份运行。这里可能有什么问题？我在脚本中没有正确使用 su 命令吗？
~]# ps -ef | grep agent-service
root 23511 15196 0 02:12 pts/3 00:00:00 agent-service
Script>
脚本>
#!/bin/bash
export AGENT=linux-5.8.1.tar.gz
while read host; do
scp $AGENT root@$host:/opt
ssh -n root@$host 'cd /opt/linux;
tar zxvf linux-5.8.1.tar.gz;
mkdir /opt/hyperic;
useradd -m test;
chown -R test:test /opt/linux;
su - test;
/opt/linux/agent-service start'
done < systems.txt
回答by Jean-Karim Bockstael
Using suas you do here spawns a new shell that has nothing to do thus exits immediately.
su像你在这里一样使用会产生一个新的外壳，它没有任何关系，因此会立即退出。
Either pass the command to su:
要么将命令传递给su：
su - test -c /opt/linux/agent-service start
Or use sudoin a similar manner:
或sudo以类似方式使用：
sudo -u test /opt/linux/agent-service start
