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PROLOG

       This  manual  page  is part of the POSIX Programmer's Manual.  The Linux implementation of
       this interface may differ (consult the corresponding Linux  manual  page  for  details  of
       Linux behavior), or the interface may not be implemented on Linux.

NAME

       uucp — system-to-system copy

SYNOPSIS

       uucp [-cCdfjmr] [-n user] source-file... destination-file

DESCRIPTION

       The  uucp  utility  shall copy files named by the source-file argument to the destination-
       file argument. The files named can be on local or remote systems.

       The  uucp  utility  cannot  guarantee  support  for  all  character   encodings   in   all
       circumstances.  For  example,  transmission  data  may  be  restricted  to  7  bits by the
       underlying network, 8-bit data and filenames need not be portable to non-internationalized
       systems,  and  so  on.  Under  these circumstances, it is recommended that only characters
       defined in the ISO/IEC 646:1991 standard International Reference  Version  (equivalent  to
       ASCII) 7-bit range of characters be used, and that only characters defined in the portable
       filename character set be used for naming files. The protocol for  transfer  of  files  is
       unspecified by POSIX.1‐2008.

       Typical  implementations  of  this utility require a communications line configured to use
       the Base Definitions volume of POSIX.1‐2017, Chapter 11, General Terminal  Interface,  but
       other  communications  means  may  be  used.  On  systems  where  there  are  no available
       communications means (either temporarily or permanently),  this  utility  shall  write  an
       error message describing the problem and exit with a non-zero exit status.

OPTIONS

       The  uucp  utility  shall  conform to the Base Definitions volume of POSIX.1‐2017, Section
       12.2, Utility Syntax Guidelines.

       The following options shall be supported:

       -c        Do not copy local file to the spool directory for transfer to the remote machine
                 (default).

       -C        Force the copy of local files to the spool directory for transfer.

       -d        Make all necessary directories for the file copy (default).

       -f        Do not make intermediate directories for the file copy.

       -j        Write  the job identification string to standard output. This job identification
                 can be used by uustat to obtain the status or terminate a job.

       -m        Send mail to the requester when the copy is completed.

       -n user   Notify user on the remote system that a file was sent.

       -r        Do not start the file transfer; just queue the job.

OPERANDS

       The following operands shall be supported:

       destination-file, source-file
                 A pathname of a file to be copied to, or from, respectively. Either name can  be
                 a pathname on the local machine, or can have the form:

                     system-name!pathname

                 where  system-name  is  taken from a list of system names that uucp knows about.
                 The destination system-name can also be a list of names such as:

                     system-name!system-name!...!system-name!pathname

                 in which case, an attempt is made to send the file via the  specified  route  to
                 the  destination.  Care should be taken to ensure that intermediate nodes in the
                 route are willing to forward information.

                 The shell pattern matching notation characters '?', '*', and  "[...]"  appearing
                 in pathname shall be expanded on the appropriate system.

                 Pathnames can be one of:

                  1. An absolute pathname.

                  2. A  pathname  preceded  by  ~user where user is a login name on the specified
                     system and is replaced by that user's  login  directory.  Note  that  if  an
                     invalid  login  is specified, the default is to the public directory (called
                     PUBDIR; the actual location of PUBDIR is implementation-defined).

                  3. A pathname preceded  by  ~/destination  where  destination  is  appended  to
                     PUBDIR.

                     Note:     This  destination  is  treated  as a filename unless more than one
                               file is being transferred by this request or  the  destination  is
                               already  a directory. To ensure that it is a directory, follow the
                               destination with a '/'.  For example, ~/dan/  as  the  destination
                               makes  the  directory PUBDIR/dan if it does not exist and puts the
                               requested files in that directory.

                  4. Anything else shall be prefixed by the current directory.

                 If the result is an erroneous pathname for the remote  system,  the  copy  shall
                 fail.  If  the destination-file is a directory, the last part of the source-file
                 name shall be used.

                 The read, write, and execute  permissions  given  by  uucp  are  implementation-
                 defined.

STDIN

       Not used.

INPUT FILES

       The files to be copied are regular files.

ENVIRONMENT VARIABLES

       The following environment variables shall affect the execution of uucp:

       LANG      Provide a default value for the internationalization variables that are unset or
                 null.  (See  the  Base  Definitions  volume  of   POSIX.1‐2017,   Section   8.2,
                 Internationalization   Variables  for  the  precedence  of  internationalization
                 variables used to determine the values of locale categories.)

       LC_ALL    If set to a non-empty string  value,  override  the  values  of  all  the  other
                 internationalization variables.

       LC_COLLATE
                 Determine the locale for the behavior of ranges, equivalence classes, and multi-
                 character collating elements within bracketed filename patterns.

       LC_CTYPE  Determine the locale for the interpretation of sequences of bytes of  text  data
                 as  characters  (for example, single-byte as opposed to multi-byte characters in
                 arguments and  input  files)  and  the  behavior  of  character  classes  within
                 bracketed filename patterns (for example, "'[[:lower:]]*'").

       LC_MESSAGES
                 Determine  the  locale  that should be used to affect the format and contents of
                 diagnostic messages written to standard error, and informative messages  written
                 to standard output.

       NLSPATH   Determine the location of message catalogs for the processing of LC_MESSAGES.

ASYNCHRONOUS EVENTS

       Default.

STDOUT

       Not used.

STDERR

       The standard error shall be used only for diagnostic messages.

OUTPUT FILES

       The output files (which may be on other systems) are copies of the input files.

       If -m is used, mail files are modified.

EXTENDED DESCRIPTION

       None.

EXIT STATUS

       The following exit values shall be returned:

        0    Successful completion.

       >0    An error occurred.

CONSEQUENCES OF ERRORS

       Default.

       The following sections are informative.

APPLICATION USAGE

       This  utility  is  part  of  the  UUCP  Utilities  option and need not be supported by all
       implementations.

       The domain of remotely accessible files can (and  for  obvious  security  reasons  usually
       should) be severely restricted.

       Note  that  the  '!'  character in addresses has to be escaped when using csh as a command
       interpreter because of its history substitution syntax.  For ksh and sh the escape is  not
       necessary, but may be used.

       As  noted  above,  shell  metacharacters  appearing  in  pathnames  are  expanded  on  the
       appropriate system. On an internationalized system, this is  done  under  the  control  of
       local  settings  of  LC_COLLATE  and  LC_CTYPE.   Thus,  care  should  be taken when using
       bracketed filename patterns, as collation and typing rules may vary  from  one  system  to
       another.  Also  be  aware  that certain types of expression (that is, equivalence classes,
       character classes, and collating symbols) need not be supported  on  non-internationalized
       systems.

EXAMPLES

       None.

RATIONALE

       None.

FUTURE DIRECTIONS

       None.

SEE ALSO

       mailx, uuencode, uustat, uux

       The Base Definitions volume of POSIX.1‐2017, Chapter 8, Environment Variables, Chapter 11,
       General Terminal Interface, Section 12.2, Utility Syntax Guidelines

COPYRIGHT

       Portions of this text are reprinted and  reproduced  in  electronic  form  from  IEEE  Std
       1003.1-2017,  Standard  for  Information Technology -- Portable Operating System Interface
       (POSIX), The Open Group Base Specifications Issue 7, 2018 Edition, Copyright (C)  2018  by
       the  Institute  of  Electrical  and Electronics Engineers, Inc and The Open Group.  In the
       event of any discrepancy between this version and the original IEEE  and  The  Open  Group
       Standard,  the  original  IEEE  and  The  Open Group Standard is the referee document. The
       original Standard can be obtained online at http://www.opengroup.org/unix/online.html .

       Any typographical or formatting errors that appear in this page are most  likely  to  have
       been  introduced  during  the conversion of the source files to man page format. To report
       such errors, see https://www.kernel.org/doc/man-pages/reporting_bugs.html .