sccs-delta(1) User Commands sccs-delta(1)NAME
sccs-delta, delta - make a delta to an SCCS file
SYNOPSIS
/usr/ccs/bin/delta [-dnps] [-g sid-list | -gsid-list] [-m mr-list |
-mmr-list] [-r sid | -rsid] [ -y [comment]] s.filename...
/usr/xpg4/bin/delta [-dnps] [-g sid-list | -gsid-list] [-m mr-list |
-mmr-list] [-r sid | -rsid] [ -y [comment]] s.filename...
DESCRIPTION
The delta utility checks in a record of the line-by-line differences
made to a checked-out version of a file under SCCS control. These
changes are taken from the writable working copy that was retrieved
using the SCCS get command (see sccs-get(1)). This working copy does
not have the `s.' prefix, and is also referred to as a g-file.
If a directory name is used in place of the s.filename argument, the
delta command applies to all s.files in that directory. Unreadable
s.files produce an error; processing continues with the next file (if
any). The use of `−' as the s.filename argument indicates that the
names of files are to be read from the standard input, one s.file per
line (requires -y, and in some cases, -m).
delta may issue prompts on the standard output depending upon the
options specified and the flags that are set in the s.file (see sccs-
admin(1), and the -m and -y options below, for details).
/usr/xpg4/bin/delta
The SID of the delta is not echoed to stdout.
OPTIONS
The following options are supported:
-d Use command diff(1) instead of
bdiff(1). Returns exit status 2 if
s.filename argument is not specified.
-n Retain the edited g-file, which is nor‐
mally removed at the completion of pro‐
cessing.
-p Display line-by-line differences (in
diff(1) format) on the standard output.
-s Silent. Do not display warning or con‐
firmation messages. Do not suppress
error messages (which are written to
standard error).
-g sid-list | -gsid-list Specify a list of deltas to omit when
the file is accessed at the SCCS ver‐
sion ID (SID) created by this delta.
sid-list is a comma-separated list of
SIDs. To specify a range of deltas, use
a `−' separator instead of a comma,
between two SIDs in the list.
-m mr-list | -mmr-list If the SCCS file has the v flag set
(see sccs-admin(1)), you must supply
one or more Modification Request (MR)
numbers for the new delta. When speci‐
fying more than one MR number on the
command line, mr-list takes the form of
a quoted, space-separated list. If -m
is not used and the standard input is a
terminal, delta prompts with MRs? for
the list (before issuing the comments?
prompt). If the v flag in the s.file
has a value, it is taken to be the name
of a program to validate the MR num‐
bers. If that validation program
returns a non-zero exit status, delta
terminates without checking in the
changes.
-r sid | -rsid When two or more versions are checked
out, specify the version to check in.
This SID value can be either the SID
specified on the get command line, or
the SID of the new version to be
checked in as reported by get. A diag‐
nostic results if the specified SID is
ambiguous, or if one is required but
not supplied.
-y[comment] Supply a comment for the delta table
(version log). A null comment is
accepted, and produces an empty commen‐
tary in the log. If -y is not specified
and the standard input is a terminal,
delta prompts with `comments?'. An
unescaped NEWLINE terminates the com‐
ment.
ENVIRONMENT VARIABLES
See environ(5) for descriptions of the following environment variables
that affect the execution of delta: LANG, LC_ALL, LC_COLLATE, LC_CTYPE,
LC_MESSAGES, and NLSPATH.
EXIT STATUS
The following exit values are returned:
0 Successful completion.
1 An error occurred and the -d option had not been specified.
2 An error occurred, the -d option had been specified, and the
s.filename argument was not specified.
FILES
d.file temporary file of differences
p.file lock file for a checked-out version
q.file temporary file
s.file SCCS history file
x.file temporary copy of the s.file
z.file temporary file
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
/usr/ccs/bin/delta
┌─────────────────────────────┬─────────────────────────────┐
│ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
├─────────────────────────────┼─────────────────────────────┤
│Availability │SUNWsprot │
└─────────────────────────────┴─────────────────────────────┘
/usr/xpg4/bin/delta
┌─────────────────────────────┬─────────────────────────────┐
│ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
├─────────────────────────────┼─────────────────────────────┤
│Availability │SUNWxcu4t │
├─────────────────────────────┼─────────────────────────────┤
│Interface Stability │Standard │
└─────────────────────────────┴─────────────────────────────┘
SEE ALSObdiff(1), diff(1), sccs-admin(1), sccs-cdc(1), sccs-get(1), sccs-
help(1), sccs-prs(1), sccs-prt(1), sccs-rmdel(1), sccs-sccsdiff(1),
sccs-unget(1), sccs(1), what(1), sccsfile(4), attributes(5), envi‐
ron(5), standards(5)DIAGNOSTICS
Use the SCCS help command for explanations (see sccs-help(1)).
WARNINGS
Lines beginning with an ASCII SOH character (binary 001) cannot be
placed in the SCCS file unless the SOH is escaped. This character has
special meaning to SCCS (see sccsfile(4)) and produces an error.
SunOS 5.10 1 Nov 1999 sccs-delta(1)
