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This article mainly explains "how to use CDPATH to define the basic directory for the linux cd command". The content of the article is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn how to use CDPATH to define the basic directory for the linux cd command.

If you often use the linux cd command to enter a subdirectory under a specific parent directory, you can set the parent directory to CDPATH. You do not need to specify the parent directory path when you execute the linux cd command to enter the subdirectory. The explanation is as follows:

[ljf@localhost ~] $pwd

/ home/ljf

[ljf@localhost ~] $cd mail

-bash: cd: mail: No such file or directory

[linux cd command note: here is to find the mail directory under the current directory]

[ljf@localhost ~] $export CDPATH=/etc

[ljf@localhost ~] $cd mail

/ etc/mail

[linux cd command note: look for the mail directory under the / etc directory, not the current directory]

[ljf@localhost mail] $pwd

/ etc/mail

[ljf@localhost mail] $

To change the base directory, add a line of code export CDPATH=/etc to your ~ / .bash_profile file.

Similar to the PATH variable, you can add multiple directory entries to the CDPATH variable, separated by ":", such as:

Export CDPATH=.:~:/etc:/var

This technique is very helpful in the following environments:

Oracle database administrators often work in the $ORACLE_HOME directory and can set the CDPATH variable to the Oracle root directory.

Unix system administrators often work in the / etc directory, and you can set the CDPATH variable to / etc.

Developers often work in the / home/projects directory, so you can set the CDPATH variable to / etc.

End users often visit their home directory and can set the CDPATH variable to ~ (home directory).

In this way, you no longer need to specify the parent directory path when you execute the linux cd command to enter the subdirectory.

Thank you for your reading, the above is the content of "how to use CDPATH to define the basic directory for the linux cd command". After the study of this article, I believe you have a deeper understanding of how to use CDPATH to define the basic directory for the linux cd command. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!

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