Bash中嵌套命令的Heredoc [英] Heredoc for nested command in bash

问题描述

我需要ssh进入机器并在 sudo bash 下执行一堆命令.这是我尝试过的:

I need to ssh into a machine and execute a bunch of commands under sudo bash. Here is what I've tried:

sshpass -p "vagrant" ssh vagrant@33.33.33.100 "sudo bash -i -c <<EOF
    echo
    ls
    echo
EOF"

但是它让我'bash:-c:option需要一个参数\ n'.我该如何解决?

But it throws me 'bash: -c: option requires an argument\n'. How can I fix this?

推荐答案

您需要从命令行中删除 -c ，以使其接受heredoc:

You need to remove -c from your command line to make it accept heredoc:

sshpass -p "vagrant" ssh vagrant@33.33.33.100 "sudo bash <<EOF
    echo
    ls
    echo
EOF"

此外，您也可以删除 -i (交互式)选项.

Also you may remove -i (interactive) option too.

bash -c 希望您在命令行上提供所有命令，因此也可以使用:

bash -c expects you to provide all commands on command line so this may work too:

sshpass -p "vagrant" ssh vagrant@33.33.33.100 "sudo bash -c 'echo; ls; echo'"

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