Bash scripting seven Save the command output to a variable (reprint)

Transferred from: http://blog.csdn.net/csfreebird/article/details/7978699

' symbol contains commands that can be saved to a variable after the command has been executed

    #!/bin/Bash             v= ' java-version '      echo $v  

Execution Result:

    $./install.sh      "1.6.0_34"      1.6. 0_34-  B04)      20.9

', English is Backtick, accent.

There is another way to wrap the commands in $ ().

    #!/bin/Bash             v=$ (Java-version)      echo $v  

The execution results are the same.

This approach allows embedding commands, but I don't know how to use them.

Backtick's way of readability is better, with more. I used it for a few service scripts.

Bash scripting seven Save the command output to a variable (reprint)