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adminposix - Online in the Cloud

Run adminposix in OnWorks free hosting provider over Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

This is the command adminposix that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

PROGRAM:

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
specified 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.filename (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.filename), 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 POSIX.1‐2008, 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 command 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 command.

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 keywords (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; however, the string shall contain a keyword, and no
embedded <newline> characters.

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 specify 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 llist 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 common 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 permission 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 manner 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
diagnostic message shall be written if the v flag is not set or MR validation
fails.

−h Check the structure of the SCCS file and compare the newly computed checksum
with the checksum that is stored in the SCCS file. If the newly computed
checksum does not match the checksum 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 detection 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 POSIX.1‐2008, 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_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.

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