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linux - What does 'cd -' stand for?

in Technique[技术] by (71.8m points)

In a bash shell script today I noticed the below command at the end of the script. I know what is cd but I am unaware of the significance of a dash after it.

cd -

What does this mean? Google naively truncates the - so I am unable to find its answer.

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If a single dash is specified as the argument, it will be replaced by the value of OLDPWD.

The OLDPWD is set by cd command and it is the previous working directory.


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