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# chgrp

chgrp -- Change file group

## Description

`int chgrp`(string filename, mixed group);

Attempts to change the group of the file filename to group. Only the superuser may change the group of a file arbitrarily; other users may change the group of a file to any group of which that user is a member.

Returns true on success; otherwise returns false.

See also chown() and chmod().

> Note: This function does not work on Windows systems

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