包含在bash空间执行命令 [英] Executing commands containing space in bash

问题描述

我有一个文件名为CMD包含UNIX命令的列表如下：

I have a file named cmd that contains a list of unix commands as follows:

hostname
pwd
ls  /tmp
cat /etc/hostname
ls -la
ps -ef | grep java
cat cmd

我还有一个脚本，在cmd中执行命令为：

I have another script that executes the commands in cmd as:

IFS=$'\n'
clear
for cmds in `cat cmd`
do
        if [  $cmds ] ; then
    	$cmds;
    	echo "****************************";
        fi
done

问题是，没有空格CMD命令运行良好，但那些与空间都没有正确的脚本PTED间$ P $。以下是输出：

The problem is that commands in cmd without spaces run fine, but those with spaces are not correctly interpreted by the script. Following is the output:

patrick-laptop
****************************
/home/patrick/bashFiles
****************************
./prog.sh: line 6: ls  /tmp: No such file or directory
****************************
./prog.sh: line 6: cat /etc/hostname: No such file or directory
****************************
./prog.sh: line 6: ls -la: command not found
****************************
./prog.sh: line 6: ps -ef | grep java: command not found
****************************
./prog.sh: line 6: cat cmd: command not found
****************************

我是什么在这里失踪？

What am I missing here?

推荐答案

试着改变一行 EVAL $ CMDS 而不仅仅是 $ CMDS

Try changing the one line to eval $cmds rather than just $cmds

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