Shulou(Shulou.com)06/03 Report--

". (dot)

In shell, users should be aware that one dot represents the current directory and two dot represent the upper directory.

CDPATH=.:~:/home:/home/web:/var:/usr/local

In the uplink CDPATH setting, the dot after the equal sign represents the current directory.

If the file name starts with dot, the file is a special file and must be displayed with the-an option in the ls directive.

In addition, in regularexpression, a dot represents a match to a character.

These are the details of what "dot" stands for in linux. Please pay attention to other related articles for more information!

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