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ADMIN(1P)                  POSIX Programmer's Manual                 ADMIN(1P)

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
       admin - create and administer SCCS files (DEVELOPMENT)

SYNOPSIS
       admin -i[name][-n][-a login][-d flag][-e login][-f flag][-m mrlist]
               [-r rel][-t[name][-y[comment]] newfile

       admin -n[-a login][-d flag][-e login][-f flag][-m mrlist][-t[name]]
              [-y[comment]] newfile ...

       admin [-a login][-d flag][-m mrlist][-r rel][-t[name]] file ...

       admin -h file ...

       admin -z file ...

DESCRIPTION
       The admin utility shall create new SCCS files or change  parameters  of
       existing ones. If a named file does not exist, it shall be created, and
       its parameters shall be initialized according to the specified options.
       Parameters  not  initialized  by  an option shall be assigned a default
       value. If a named file does exist, parameters corresponding  to  speci-
       fied  options  shall  be changed, and other parameters shall be left as
       is.

       All SCCS filenames supplied by the application shall  be  of  the  form
       s.filename.  New  SCCS  files shall be given read-only permission mode.
       Write permission in the parent directory is required to create a  file.
       All writing done by admin shall be to a temporary x-file, named x.file-
       name (see get ) created with read-only mode if admin is creating a  new
       SCCS  file,  or  created with the same mode as that of the SCCS file if
       the file already exists. After successful execution of admin, the  SCCS
       file  shall  be removed (if it exists), and the x-file shall be renamed
       with the name of the SCCS file. This ensures that changes are  made  to
       the SCCS file only if no errors occur.

       The  admin  utility shall also use a transient lock file (named z.file-
       name), which is used to prevent simultaneous updates to the SCCS  file;
       see get .

OPTIONS
       The  admin  utility  shall  conform  to  the Base Definitions volume of
       IEEE Std 1003.1-2001, Section 12.2, Utility Syntax  Guidelines,  except
       that  the  -i, -t, and -y options have optional option-arguments. These
       optional option-arguments shall not be presented as separate arguments.
       The following options are supported:

       -n     Create  a  new  SCCS  file. When -n is used without -i, the SCCS
              file shall be created with control information but  without  any
              file data.

       -i[name]
              Specify  the  name  of a file from which the text for a new SCCS
              file shall be taken. The text constitutes the first delta of the
              file (see the -r option for the delta numbering scheme).  If the
              -i option is used, but the name option-argument is omitted,  the
              text  shall  be  obtained by reading the standard input. If this
              option is omitted, the SCCS file shall be created  with  control
              information  but  without  any file data.  The -i option implies
              the -n option.

       -r  SID
              Specify the SID of the initial delta to be  inserted.  This  SID
              shall  be  a trunk SID; that is, the branch and sequence numbers
              shall be zero or missing. The  level  number  is  optional,  and
              defaults to 1.

       -t[name]
              Specify  the  name of a file from which descriptive text for the
              SCCS file shall be taken. In the case  of  existing  SCCS  files
              (neither -i nor -n is specified):

               * A  -t  option  without a name option-argument shall cause the
                 removal of descriptive text (if any) currently  in  the  SCCS
                 file.

               * A  -t option with a name option-argument shall cause the text
                 (if any) in the named file to replace  the  descriptive  text
                 (if any) currently in the SCCS file.

       -f  flag
              Specify  a  flag,  and,  possibly,  a  value for the flag, to be
              placed in the SCCS file. Several -f options may be supplied on a
              single  admin  command line. Implementations shall recognize the
              following flags and associated values:

       b
              Allow use of the -b option on a get  command  to  create  branch
              deltas.

       cceil
              Specify  the  highest  release (that is, ceiling), a number less
              than or equal to 9999, which may be retrieved by a  get  command
              for  editing.  The default value for an unspecified c flag shall
              be 9999.

       ffloor
              Specify the lowest release (that is, floor),  a  number  greater
              than  0 but less than 9999, which may be retrieved by a get com-
              mand for editing. The default value for an  unspecified  f  flag
              shall be 1.

       dSID
              Specify  the default delta number (SID) to be used by a get com-
              mand.

       istr
              Treat the "No ID keywords" message issued by get or delta  as  a
              fatal  error. In the absence of this flag, the message is only a
              warning. The message is issued if no  SCCS  identification  key-
              words  (see  get  ) are found in the text retrieved or stored in
              the SCCS file. If a value is  supplied,  the  application  shall
              ensure  that  the  keywords exactly match the given string; how-
              ever, the string shall contain a keyword, and no embedded  <new-
              line>s.

       j
              Allow  concurrent get commands for editing on the same SID of an
              SCCS file. This allows multiple concurrent updates to  the  same
              version of the SCCS file.

       llist
              Specify a list of releases to which deltas can no longer be made
              (that is, get -e against one of these  locked  releases  fails).
              Conforming  applications shall use the following syntax to spec-
              ify a list. Implementations may accept additional  forms  as  an
              extension:

                     <list> ::= a | <range-list>
                     <range-list> ::= <range> | <range-list>, <range>
                     <range> ::= <SID>

              The  character  a  in the list shall be equivalent to specifying
              all releases for the named SCCS file. The non-terminal <SID>  in
              range  shall be the delta number of an existing delta associated
              with the SCCS file.

       n
              Cause delta to create a null delta in each of those releases (if
              any)  being  skipped  when a delta is made in a new release (for
              example, in making delta 5.1 after delta 2.7, releases 3  and  4
              are skipped).  These null deltas shall serve as anchor points so
              that branch deltas may later be created from them.  The  absence
              of  this  flag shall cause skipped releases to be nonexistent in
              the SCCS file, preventing branch deltas from being created  from
              them  in  the  future.   During  the initial creation of an SCCS
              file, the n flag may be ignored; that is, if the  -r  option  is
              used  to  set  the  release number of the initial SID to a value
              greater than  1,  null  deltas  need  not  be  created  for  the
              "skipped" releases.

       qtext
              Substitute  user-definable  text  for all occurrences of the %Q%
              keyword in the SCCS file text retrieved by get.

       mmod
              Specify the module name of the SCCS  file  substituted  for  all
              occurrences  of  the %M% keyword in the SCCS file text retrieved
              by get. If the m flag is not specified, the value assigned shall
              be the name of the SCCS file with the leading '.' removed.

       ttype
              Specify  the type of module in the SCCS file substituted for all
              occurrences of the %Y% keyword in the SCCS file  text  retrieved
              by get.

       vpgm
              Cause  delta  to prompt for modification request (MR) numbers as
              the reason for creating a delta. The  optional  value  specifies
              the  name  of  an MR number validation program. (If this flag is
              set when creating an SCCS file,  the  application  shall  ensure
              that the m option is also used even if its value is null.)

       -d  flag
              Remove (delete) the specified flag from an SCCS file. Several -d
              options may be supplied on a single admin command.  See  the  -f
              option  for  allowable flag names. (The l list flag gives a list
              of releases to be  unlocked.  See  the  -f  option  for  further
              description of the l flag and the syntax of a list.)

       -a  login
              Specify  a login name, or numerical group ID, to be added to the
              list of users who may make deltas (changes) to the SCCS file.  A
              group  ID shall be equivalent to specifying all login names com-
              mon to that group ID. Several -a options may be used on a single
              admin  command  line. As many logins, or numerical group IDs, as
              desired may be on the list simultaneously. If the list of  users
              is  empty,  then  anyone may add deltas. If login or group ID is
              preceded by a '!', the users so specified shall be  denied  per-
              mission to make deltas.

       -e  login
              Specify  a  login name, or numerical group ID, to be erased from
              the list of users allowed to make deltas (changes) to  the  SCCS
              file.  Specifying  a  group  ID  is equivalent to specifying all
              login names common to that group ID. Several -e options  may  be
              used on a single admin command line.

       -y[comment]
              Insert  the comment text into the SCCS file as a comment for the
              initial delta in a manner identical to that  of  delta.  In  the
              POSIX  locale,  omission  of  the  -y  option  shall result in a
              default comment line being inserted in the form:

              "date and time created %s %s by %s", <date>, <time>, <login>

       where <date> is expressed in the format of the date utility's %y / %m /
       %d conversion specification, <time> in the format of the date utility's
       %T conversion specification format, and <login> is the  login  name  of
       the user creating the file.

       -m  mrlist
              Insert  the  list  of modification request (MR) numbers into the
              SCCS file as the reason for creating the initial delta in a man-
              ner  identical to delta. The application shall ensure that the v
              flag is set and the MR numbers are validated if the v flag has a
              value  (the name of an MR number validation program). A diagnos-
              tic message shall be written if the v flag is not set or MR val-
              idation fails.

       -h     Check  the structure of the SCCS file and compare the newly com-
              puted checksum with the checksum that  is  stored  in  the  SCCS
              file.   If the newly computed checksum does not match the check-
              sum in the SCCS file, a diagnostic message shall be written.

       -z     Recompute the SCCS file checksum and store it in the first  line
              of  the  SCCS  file  (see the -h option above). Note that use of
              this option on a truly corrupted file may prevent future  detec-
              tion of the corruption.

OPERANDS
       The following operands shall be supported:

       file   A pathname of an existing SCCS file or a directory. If file is a
              directory, the admin utility shall behave as though each file in
              the  directory  were specified as a named file, except that non-
              SCCS files (last component of the pathname does not  begin  with
              s.) and unreadable files shall be silently ignored.

       newfile
              A pathname of an SCCS file to be created.

       If  exactly  one  file  or  newfile operand appears, and it is '-', the
       standard input shall be read; each line of the standard input shall  be
       taken  to  be  the name of an SCCS file to be processed. Non-SCCS files
       and unreadable files shall be silently ignored.

STDIN
       The standard input shall be a text file used only if  -i  is  specified
       without an option-argument or if a file or newfile operand is specified
       as '-' . If the first character of any standard input line is <SOH>  in
       the POSIX locale, the results are unspecified.

INPUT FILES
       The existing SCCS files shall be text files of an unspecified format.

       The  application  shall  ensure  that the file named by the -i option's
       name option-argument shall be a text file; if the  first  character  of
       any  line  in  this  file is <SOH> in the POSIX locale, the results are
       unspecified. If this file contains more than 99999 lines, the number of
       lines  recorded  in  the  header  for this file shall be 99999 for this
       delta.

ENVIRONMENT VARIABLES
       The following environment  variables  shall  affect  the  execution  of
       admin:

       LANG   Provide  a  default value for the internationalization variables
              that are unset or null. (See  the  Base  Definitions  volume  of
              IEEE Std 1003.1-2001,  Section  8.2,  Internationalization Vari-
              ables 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_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).

       LC_MESSAGES
              Determine  the  locale  that should be used to affect the format
              and contents of diagnostic messages written  to  standard  error
              and the contents of the default -y comment.

       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
       Any SCCS files created shall be text files of  an  unspecified  format.
       During processing of a file, a locking z-file, as described in get, may
       be created and deleted.

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
       It is recommended that directories containing SCCS files be writable by
       the  owner  only, and that SCCS files themselves be read-only. The mode
       of the directories should allow only the owner  to  modify  SCCS  files
       contained  in  the directories. The mode of the SCCS files prevents any
       modification at all except by SCCS commands.

EXAMPLES
       None.

RATIONALE
       None.

FUTURE DIRECTIONS
       None.

SEE ALSO
       delta, get, prs, what

COPYRIGHT
       Portions of this text are reprinted and reproduced in  electronic  form
       from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
       -- Portable Operating System Interface (POSIX),  The  Open  Group  Base
       Specifications  Issue  6,  Copyright  (C) 2001-2003 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 .

IEEE/The Open Group                  2003                            ADMIN(1P)
 

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