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\section{Built-in Module \sectcode{grp}}
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\label{module-grp}
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\bimodindex{grp}
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This module provides access to the \UNIX{} group database.
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It is available on all \UNIX{} versions.
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Group database entries are reported as 4-tuples containing the
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following items from the group database (see \file{<grp.h>}), in order:
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\code{gr_name},
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\code{gr_passwd},
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\code{gr_gid},
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\code{gr_mem}.
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The gid is an integer, name and password are strings, and the member
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list is a list of strings.
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(Note that most users are not explicitly listed as members of the
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group they are in according to the password database.)
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An exception is raised if the entry asked for cannot be found.
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It defines the following items:
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\renewcommand{\indexsubitem}{(in module grp)}
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\begin{funcdesc}{getgrgid}{gid}
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Return the group database entry for the given numeric group ID.
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\end{funcdesc}
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\begin{funcdesc}{getgrnam}{name}
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Return the group database entry for the given group name.
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\end{funcdesc}
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\begin{funcdesc}{getgrall}{}
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Return a list of all available group entries, in arbitrary order.
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\end{funcdesc}
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