- ext
- clib
- socket.pl -- Network socket (TCP and UDP) library
- uid.pl -- User and group management on Unix systems
- unix.pl -- Unix specific operations
- syslog.pl -- Unix syslog interface
- filesex.pl -- Extended operations on files
- uri.pl -- Process URIs
- process.pl -- Create processes and redirect I/O
- time.pl -- Time and alarm library
- sha.pl -- SHA secure hashes
- crypt.pl
- memfile.pl
- uuid.pl -- Universally Unique Identifier (UUID) Library
- hash_stream.pl -- Maintain a hash on a stream
- md5.pl -- MD5 hashes
- streampool.pl -- Input multiplexing
- cgi.pl -- Read CGI parameters
- udp_broadcast.pl -- A UDP broadcast proxy
- prolog_stream.pl -- A stream with Prolog callbacks
- rlimit.pl
- clib
- chmod(+File, +Spec) is det
- Set the mode of the target file. Spec is one of
+Mode,-Modeor a plain Mode, which adds new permissions, revokes permissions or sets the exact permissions. Mode itself is an integer, a POSIX mode name or a list of POSIX mode names. Defines names aresuid,sgid,svtxand all names defined by the regular expression[ugo]*[rwx]*. Specifying none of "ugo" is the same as specifying all of them. For example, to make a file executable for the owner (user) and group, we can use:?- chmod(myfile, +ugx).