Use Shell scripts in Linux to change the current working path

 

There are three methods for executing Shell scripts.

Bash Script Name

Sh Script Name

Chmod + x Script Name

Use the following statement to test

# A. sh (the extension cannot be used) cd/pwdecho "complete"

However, the path is changed during the execution, but the final result is that the path is not changed.

[fedora@localhost ~]$ bash a.sh/complete[fedora@localhost ~]$

Cause analysis:

When the script is executed, only a sub-process is opened under the current shell. The directory switch operation is only valid for subsequent commands in the process, but cannot change the directory of the parent process.

Solution:

Method 1:

Use source a. sh.

Method 2:

[fedora@localhost ~]$ cd ~[fedora@localhost ~]$ chmod u+x a.sh[fedora@localhost ~]$ . ./a.sh /complete[fedora@localhost /]$

For $ ../a. sh

The first point is the bash Internal Command, indicating to run in the Current shell

"./A. sh" is the command parameter, that is, the script to be executed.

Note: there must be a space between two points.