在多台机器上运行相同的脚本 [英] running same script over many machines

问题描述

我已经建立了几个EC2实例，而这一切都在主目录的脚本。我想在每一个EC2实例同时运行该脚本，即没有经历一个循环。

I have setup a few EC2 instances, which all have a script in the home directory. I would like to run the script simultaneously across each EC2 instance, i.e. without going through a loop.

我看到csshX的OSX的终端互动使用率......但不知道命令行code是要执行的命令，像

I have seen csshX for OSX for terminal interactive useage...but was wondering what the commandline code is to execute commands like

ssh [e-mail] . test.sh

要自...

csshX [e-mail].1 [e-mail].2 [e-mail].3 . test.sh 

不工作...

does not work...

我想这样做在命令行，因为我想将它添加到一个shell脚本来自动完成这个过程。

I would like to do this over the commandline as I would like to automate this process by adding it into a shell script.

和奖励积分...如果有一种方法将消息发送回设备发送命令，它已经完成运行，将是非常美妙的脚本。

and for bonus points...if there is a way to send a message back to the machine sending the command that it has completed running the script that would be fantastic.

推荐答案

将它足够好，有运行所有这些东西在后台主shell脚本？例如，

will it be good enough to have a master shell script that runs all these things in the background? e.g.,

#!/bin/sh
pidlist="ignorethis"
for ip in ip1 ip2
do
    ssh user@$ip . test.sh &
    pidlist="$pidlist $!" # get the process number of the last forked process
done

# Now all processes are running on the remote machines, and we want to know
# when they are done.

# (EDIT) It's probably better to use the 'wait' shell built-in; that's
# precisely what it seems to be for.
while true
do
    sleep 1
    alldead=true
    for pid in $pidlist
    do
        if kill -0 $pid > /dev/null 2>&1
        then
            alldead=false
            echo some processes alive
            break
        fi
    done
    if $alldead
    then
        break
    fi
done

回声全部完成。

echo all done.

它不会被精确地同时，但它应该开球远程脚本并联

it will not be exactly simultaneous, but it should kick off the remote scripts in parallel.

这篇关于在多台机器上运行相同的脚本的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！