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This article mainly introduces how to use "dirs", "pushd" and "popd" in Linux to operate the catalog stack, which has a certain reference value, and interested friends can refer to it. I hope you can learn a lot after reading this article.

You can press the directory into the directory stack, or you can pop it up later. In subsequent examples, the following three commands will be used:

* dirs: displays the directory stack

* pushd: push the directory into the directory stack

* popd: pop the directory out of the directory stack

The dirs command displays the contents of the current directory and directory stack. Dirs displays the current directory even if the directory stack is empty, as shown in the following example:

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# popd

-bash: popd: directory stack empty

# dirs

~

# pwd

/ home/ramesh

How to use pushd and popd? Let's create some temporary directories and push them into the directory stack.

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# mkdir / tmp/dir1

# mkdir / tmp/dir2

# mkdir / tmp/dir3

# mkdir / tmp/dir4

# cd / tmp/dir1

# pushd.

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# cd / tmp/dir2

# pushd.

# cd / tmp/dir3

# pushd.

# cd / tmp/dir4

# pushd.

# dirs

/ tmp/dir4 / tmp/dir4 / tmp/dir3 / tmp/dir2 / tmp/dir1

[note: the * * directory names displayed are always the current directory, not the contents that are explicitly pressed into the stack]

At this point, the directory stack contains the following:

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/ tmp/dir4

/ tmp/dir3

/ tmp/dir2

/ tmp/dir1

The pressed directory is at the top of the stack. When you execute "popd", the system jumps to the directory at the top of the stack and clears it from the stack. As shown above, * pushes / tmp/dir4 into the stack, so when you do a popd, it jumps to the / tmp/dir4 directory and removes it from the stack. As follows:

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# popd

# pwd

/ tmp/dir4

[note: after executing the popd command, the directory stack includes the following directories

/ tmp/dir3

/ tmp/dir2

/ tmp/dir1]

# popd

# pwd

/ tmp/dir3

[note: after executing the popd command, the directory stack includes the following directories

/ tmp/dir2

/ tmp/dir1]

# popd

# pwd

/ tmp/dir2

[note: after executing the popd command, the directory stack includes the following directory / tmp/dir1]

# popd

# pwd

/ tmp/dir1

[note: after executing the popd command, the directory stack includes the following directories]

# popd

-bash: popd: directory stack empty

Thank you for reading this article carefully. I hope the article "how to use" dirs "," pushd "and" popd "to operate the catalog stack shared by the editor will be helpful to everyone. At the same time, I also hope that you will support and pay attention to the industry information channel. More related knowledge is waiting for you to learn!

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