ssh脚本不会将控制权返回给父脚本 [英] ssh script doesn't return control to the parent script

问题描述

我试图通过将其写入 ssh 命令的标准输入中来在远程服务器上执行本地脚本.该脚本可以正常运行，但是 ssh 不会退出:它只是挂起，控件也不会返回到父脚本.

I am trying to execute a local script on the remote server, by writing it to standard input of an ssh command. The script runs fine, but then ssh doesn't exit: it just hangs, and control doesn't return to the parent script.

父级外壳:

for HOSTNAME in ${HOSTS} ; do
    ssh -t -t $HOSTNAME "bash -s" < ~backup_conf.sh 
done

调用脚本:

#!/bin/sh    
AGENT_BASE_PATH=/home/lokesh

if [ -d "$AGENT_BASE_PATH/CI/DE_deployment/conf" ]; then 
        if [ -d "$AGENT_BASE_PATH/CI/temp/conf_bkup" ]; then 
            rm -rf $AGENT_BASE_PATH/CI/temp/conf_bkup
        fi  
        cp -R $AGENT_BASE_PATH/CI/DE_deployment/conf $AGENT_BASE_PATH/CI/temp/conf_bkup
fi
exit

我已经写了退出"，但是控件没有返回到父脚本.它挂在远程服务器上....:(

I have written 'exit' but the control is not returning back to the parent script. It hangs at the remote server.... :(

推荐答案

罪魁祸首是调用代码中的 bash -s 行，该行仍期望输入使用 ctrl-C结束:

Culprit is bash -s line in your calling code, which is still expecting input to be ended using ctrl-C:

尝试以下方法:

for HOSTNAME in ${HOSTS} ; do
    ssh -t -t $HOSTNAME "bash ~backup_conf.sh"
done

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