What is the use of the popd command in Linux

Editor to share with you what is the use of the popd command in Linux, I believe most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to know it!

Linux common command popd command is used to delete records in the directory stack; if the popd command does not take any parameters, it will first delete the record at the top of the directory stack, and then switch to the top directory in the deleted directory stack

Popd removes directories from the directory stack.

Summary popd [- n] [+ N |-N] is mainly used to delete directories from the directory stack. If the top directory is deleted, the current working directory will be switched to the new top directory.

When there are no parameters, delete the top of the directory stack.

Option-n suppresses changes to the current working directory caused by deleting a directory. Parameter + N (optional): the Nth directory from the left will be deleted from the list displayed by the dirs command without parameters. (count from 0)

-N (optional): the Nth directory from the right will be deleted from the list displayed by the dirs command without parameters. (count from 0)

The return value returns success unless an illegal option is provided or an error occurs in the execution.

Example # add a directory to the stack, and the current working directory remains the same. [user2@pc ~] $dirs ~ [user2@pc ~] $pushd-n ~ / Desktop ~ ~ / Desktop [user2@pc ~] $pushd-n ~ / Pictures ~ ~ / Pictures ~ / Desktop [user2@pc ~] $pushd-n ~ / bin ~ / bin ~ / Pictures ~ / Desktop # Delete a directory from the directory stack Deleting the top directory changes the current working directory: [user2@pc ~] $popd-2 ~ / Pictures ~ / Desktop [user2@pc ~] $popd + 1 ~ / Desktop [user2@pc ~] $popd ~ / Desktop [user2@pc Desktop] $# remove the directory from the directory stack Deleting the top directory does not change the current working directory: [user2@pc ~] $dirs ~ [user2@pc ~] $pushd-n ~ / Desktop ~ ~ / Desktop [user2@pc ~] $popd-n ~ [user2@pc ~] $Note the directory stack command for bash includes dirs popd pushd.

The current directory is always at the top of the directory stack.

This command is a bash built-in command. For help, please see the help command.

Refer to the behavior of the linked popd, pushd command'- n 'option

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