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Predicate setgid/1
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ext
clib
socket.pl -- Network socket (TCP and UDP) library
time.pl -- Time and alarm library
uid.pl -- User and group management on Unix systems
getuid/1
getgid/1
geteuid/1
getegid/1
getgroups/1
user_info/2
user_data/3
group_info/2
group_data/3
setuid/1
seteuid/1
setgid/1
setegid/1
initgroups/2
setgroups/1
set_user_and_group/1
set_user_and_group/2
unix.pl -- Unix specific operations
syslog.pl -- Unix syslog interface
uri.pl -- Process URIs
filesex.pl -- Extended operations on files
memfile.pl
sha.pl -- SHA secure hashes
crypt.pl
uuid.pl -- Universally Unique Identifier (UUID) Library
process.pl -- Create processes and redirect I/O
md5.pl -- MD5 hashes
cgi.pl -- Read CGI parameters
hash_stream.pl -- Maintain a hash on a stream
mallocinfo.pl -- Memory allocation details
prolog_server.pl
prolog_stream.pl -- A stream with Prolog callbacks
rlimit.pl
sched.pl -- Access process scheduling
streaminfo.pl
streampool.pl -- Input multiplexing
udp_broadcast.pl -- A UDP broadcast proxy
setgid
(+GID)
Set the group id of the calling process.