- ext
- clib
- socket.pl
- uid.pl -- User and group management on Unix systems
- unix.pl
- 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
- prolog_stream.pl -- A stream with Prolog callbacks
- udp_broadcast.pl -- A UDP broadcast proxy
- cgi.pl -- Read CGI parameters
- rlimit.pl
- clib
- copy_directory(+From, +To) is det
- Copy the contents of the directory From to To (recursively). If To is the name of an existing directory, the contents of From are copied into To. I.e., no subdirectory using the basename of From is created.