CDC(1)			 HP-UX 5.0			CDC(1)

     NAME
	  cdc - change the delta commentary of an SCCS delta

     SYNOPSIS
	  cdc -rSID [-m[mrlist]] [-y[comment]] files

     HP-UX COMPATIBILITY
	  Level:    HP-UX/STANDARD

	  Origin:   System III

     DESCRIPTION
	  Cdc changes the delta commentary, for the SID	 specified  by
	  the -r keyletter, of each named SCCS file.

	  Delta commentary is defined to be the	 Modification  Request
	  (MR)	and  comment  information  normally  specified via the
	  delta(1) command (-m and -y keyletters).

	  If a directory is named, cdc behaves as though each file  in
	  the  directory  were	specified as a named file, except that
	  non-SCCS files (last component of the	 path  name  does  not
	  begin	 with  s.)  and unreadable files are silently ignored.
	  If a name of - is given, the standard	 input	is  read  (see
	  WARNINGS);  each  line  of the standard input is taken to be
	  the name of an SCCS file to be processed.

	  Arguments to cdc, which may appear in any order, consist  of
	  keyletter arguments and file names.

	  All the described keyletter arguments apply independently to
	  each named file:

	       -rSID	      Used to specify the SCCS	IDentification
			      (SID)  string  of	 a delta for which the
			      delta commentary is to be changed.

	       -m[mrlist]     If the SCCS file has the v flag set (see
			      admin(1))	 then  a list of MR numbers to
			      be added and/or  deleted	in  the	 delta
			      commentary  of  the SID specified by the
			      -r keyletter may be supplied.  A null MR
			      list has no effect.

			      MR entries are added to the list of  MRs
			      in  the same manner as that of delta(1).
			      In order to delete an MR, precede the MR
			      number   with   the   character  !  (see
			      EXAMPLES).  If the MR to be  deleted  is
			      currently	 in  the  list	of  MRs, it is
			      removed and changed into	a  ``comment''
			      line.   A	 list  of  all	deleted MRs is
			      placed in the  comment  section  of  the
			      delta   commentary  and  preceded	 by  a
			      comment  line  stating  that  they  were
			      deleted.

			      If -m is not used and the standard input
			      is a terminal, the prompt MRs? is issued
			      on  the  standard	 output	  before   the
			      standard	input is read; if the standard
			      input is not a terminal,	no  prompt  is
			      issued.  The MRs? prompt always precedes
			      the comments? prompt (see -y keyletter).

			      MRs in a list are	 separated  by	blanks
			      and/or  tab  characters.	 An  unescaped
			      new-line	character  terminates  the  MR
			      list.

			      Note that if the v flag has a value (see
			      admin(1)), it is taken to be the name of
			      a program	 (or  shell  procedure)	 which
			      validates	 the  correctness  of  the  MR
			      numbers.	If a non-zero exit  status  is
			      returned	from  the MR number validation
			      program, cdc terminates  and  the	 delta
			      commentary remains unchanged.

	       -y[comment]    Arbitrary	 text  used  to	 replace   the
			      comment(s)   already  existing  for  the
			      delta specified  by  the	-r  keyletter.
			      The   previous  comments	are  kept  and
			      preceded by a comment line stating  that
			      they  were  changed.  A null comment has
			      no effect.

			      If -y is not specified and the  standard
			      input   is   a   terminal,   the	prompt
			      comments?	 is  issued  on	 the  standard
			      output  before  the  standard  input  is
			      read; if the standard  input  is	not  a
			      terminal,	  no  prompt  is  issued.   An
			      unescaped new-line character  terminates
			      the comment text.

	       The exact permissions necessary to modify the SCCS file
	       are documented in the article indicated under SEE ALSO.
	       Simply stated, they are either  (1)  if	you  made  the
	       delta,  you  can change its delta commentary; or (2) if
	       you own the file and directory you can modify the delta
	       commentary.

     EXAMPLES
	       cdc   -r1.6   -m"bl78-12345   !bl77-54321   bl79-00001"
	       -ytrouble s.file

	  adds bl78-12345 and  bl79-00001  to  the  MR	list,  removes
	  bl77-54321 from the MR list, and adds the comment trouble to
	  delta 1.6 of s.file.

	       cdc -r1.6 s.file
	       MRs? !bl77-54321 bl78-12345 bl79-00001
	       comments? trouble

	  does the same thing.

     FILES
	  x-file    (see delta(1))
	  z-file    (see delta(1))

     SEE ALSO
	  admin(1), delta(1), get(1), help(1), prs(1), sccsfile(5).
	  SCCS User's Guide in HP-UX Concepts and Tutorials.

     DIAGNOSTICS
	  Use help(1) for explanations.

     WARNINGS
	  If SCCS file names are supplied to the cdc command  via  the
	  standard  input  (- on the command line), then the -m and -y
	  keyletters must also be used.