https://invisible-island.net/ded/sccs_tools/

getdelta(man)

NAME

       getdelta - SCCS check-out utility

SYNOPSIS

       getdelta [options] [file-specifications]

DESCRIPTION

       Getdelta  is  a  simple interface to sccs (source code control system),
       which is used to extract files from sccs archives.

       Getdelta checks out (extracts) files from an sccs  archive  which  have
       been checked in using putdelta (orsccsput, which invokes it).  Putdelta
       checks  in  files,  retaining  their  modification date as the check-in
       date.  Getdelta extracts a given version of one or more files, and sets
       the modification date to match the check-in date.

OPTIONS

       Getdelta is a package (which invokes sccs's  get)  which  does  special
       things with the file modification date.  Most of its options are passed
       to  get,  and  then  interpreted  to determine the correct modification
       date:

       -ccutoff
              specifies the sccs cutoff date, in the format

              YY[MM[DD[HH[MM[SS]]]]]

              Punctuation in the date is permitted.
                     For example,

                   -c 77/2/2 9:22:25
                   -c 770202092225

              represent the same date.

       -f     forces getdelta to remove the current version of the file before
              extracting the  specified  version.   Otherwise,  getdelta  will
              refuse to overwrite a file which already exists.

       -k     directs  get  to extract the specified file without substituting
              sccs identification keywords.  You should use this option if you
              intend to make updates to the file.

       -n     suppresses  the  get-operation.   Instead,  getdelta  echoes   a
              message  showing the name, version and date of files which would
              be extracted.

       -rSID  specifies the sccs identification string (SID) of the version of
              an sccs file to be retrieved.

       -s     suppresses most messages written by the get utility (i.e., those
              written to standard output).

OPERATIONS

       To extract files using getdelta, you must provide one  or  more  names.
       They  must  be the names either of the working files, or of the archive
       "s." files.

ENVIRONMENT

       Getdelta invokes the sccs utility get, which  must  be  in  your  path.
       Environment variables used by getdelta include:

       SCCS_DIR
              specifies  the  directory  in  which getdelta will find the "s."
              files.  If not specified, getdelta assumes "SCCS".

       TZ     is the timezone, which getdelta manipulates to obtain the file's
              modification date.  It assumes that the timezone of the check-in
              date in the "s." file is EST5EDT.

FILES

       Getdelta consists of a single binary file written in C.  It runs  in  a
       POSIX environment.

ANTICIPATED CHANGES

       None.

AUTHORS

       Thomas Dickey (Software Productivity Consortium).