将带有空格+通配符的变量传递给远程ssh

Posted 2021-03-26

我试图将带有空格的变量传递给ssh。

report_name="This is a sample report"
dir=/home/sample

ssh $remote_host "ls -t "$dir/$report_name"*.xlsx | head -1"

输出：

ls: is: No such file or directory
ls: a: No such file or directory
ls: sample: No such file or directory
ls: report*.xlsx: No such file or directory

如何使这项工作？

编辑：

答案：经过多次试验和错误，我使用下面的工作。

ssh $remote_host "ls -t "$dir"/'"$report_name"'.xlsx | head -1"

答案

这是一个不涉及转义空白区域的示例：

#!/bin/bash
report_name="This is a sample report"
dir=/tmp

echo "First file:"
ssh $remote_host "ls -t '$dir/$report_name'*.xlsx | head -1"
echo "All files:"
ssh $remote_host "ls -t '$dir/$report_name'*.xlsx"

外部双引号基本上是逃避内部单引号。这导致它们进入远程shell。这是我的输出：

First file:
/tmp/This is a sample report_4.xlsx
All files:
/tmp/This is a sample report_4.xlsx
/tmp/This is a sample report_2.xlsx
/tmp/This is a sample report_3.xlsx
/tmp/This is a sample report_1.xlsx