如何在shellscripting中将命令结果存储在变量中? [英] How to store command results in a variable in on shellscripting?

问题描述

我想找出主目录中目录和文件的数量，并想在shell脚本中存储一些变量.我正在使用以下命令集.

I want to find out number of directories and files in home directory and want to store count some variable in a shell script. I am using following set of commands.

command="ls -l | grep -c \"rahul.*patle\""
eval $command

我想将此计数存储到一些变量计数中.我该怎么做.

i want to store this count into some varibale count. How can i do this.

推荐答案

将命令输出存储到变量中的语法为var=$(command).

The syntax to store the command output into a variable is var=$(command).

因此您可以直接这样做:

So you can directly do:

result=$(ls -l | grep -c "rahul.*patle")

变量$result将包含匹配数目.

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