Use chdir.

chdir($dir)
   or die("Can't change to dir $dir: $!\n");
[download]

The argument can be

• A drive (e.g. F:)
• A relative path without a drive (e.g. docs)
• A relative path with a drive (e.g. F:docs)
• An absolute path without a drive (e.g. \docs)
• An absolute path with a drive (e.g. F:\docs)
• A UNC path (e.g. \\tribble\share)

If both a drive and a directory is provided, both the current drive and the current directory on that drive will be changed. This differs from the cd shell command which only does the latter.

Both slashes (\ and /) can be used as a separator and to prefix a UNC path.

Make sure to properly escape backslashes in the string literals that produce the paths if applicable.

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