bash 用于 ssh 到远程文件夹并检查所有文件的脚本？
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A script to ssh into a remote folder and check all files?
提问by Vlad the Impala
I have a public/private key pair set up so I can ssh to a remote server without having to log in. I'm trying to write a shell script that will list all the folders in a particular directory on the remote server. My question is: how do I specify the remote location? Here's what I've got:
我设置了一个公钥/私钥对，因此我可以 ssh 到远程服务器而无需登录。我正在尝试编写一个 shell 脚本，该脚本将列出远程服务器上特定目录中的所有文件夹。我的问题是：如何指定远程位置？这是我所拥有的：
#!/bin/bash
for file in [email protected]:dir/*
do
if [ -d "$file" ]
then
echo $file;
fi
done
回答by Siddhartha Reddy
Try this:
尝试这个：
for file in `ssh [email protected] 'ls -d dir/*/'`
do
echo $file;
done
Or simply:
或者干脆：
ssh [email protected] 'ls -d dir/*/'
Explanation:
解释：
- The sshcommand accepts an optional command after the hostname and, if a command is provided, it executes that command on login instead of the login shell; ssh then simply passes on the stdout from the command as its own stdout. Here we are simply passing the lscommand.
- ls -d dir/*/ is a trick to make ls skip regular files and list out only the directories.
- 所述SSH命令主机名之后接受可选命令，并且如果提供了命令，则在登录而不是登录shell执行该命令; ssh 然后简单地将命令中的标准输出作为它自己的标准输出传递。这里我们只是简单地传递ls命令。
- ls -d dir/*/ 是一种让 ls 跳过常规文件并仅列出目录的技巧。
