delta.1 (2010 09)

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delta(1) delta(1)

NAME

delta - make a delta (change) to an SCCS ﬁle

SYNOPSIS

delta [-r SID ][-s][

-n][-g list ][-m mrlist ][-y comment ][-p

] ﬁles

DESCRIPTION

The

delta command is used to permanently introduce into the named

SCCS ﬁle changes that were made

to the ﬁle retrieved by

get (called the g-ﬁle, or generated ﬁle). See get (1).

delta makes a delta to each named

SCCS ﬁle. If a directory is named, delta behaves as though each

ﬁle in the directory was 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 stan-

dard input is read (see

WARNINGS

). Each line of the standard input is taken to be the name of an

SCCS

ﬁle to be processed.

delta may issue prompts on the standard output, depending upon certain options speciﬁed and ﬂags

(see admin(1)) that may be present in the

SCCS ﬁle (see the -m and -y options below).

Options

Option arguments apply independently to each named ﬁle.

-rSID Uniquely identiﬁes which delta is to be made to the SCCS ﬁle. Use of this option is

necessary only if two or more outstanding gets for editing (get -e) on the same

SCCS ﬁle were done by the same person (login name). The SID value speciﬁed with

the -r option can be either the SID speciﬁed on the get command line or the

SID to

be made as reported by the

get command (see get (1)). A diagnostic results if the

speciﬁed SID is ambiguous, or, if necessary and omitted on the command line.

-s Suppresses issuing, on the standard output, of the created delta’s

SID as well as the

number of lines inserted, deleted and unchanged in the

SCCS ﬁle.

-n Speciﬁes retention of the edited g-ﬁle (normally removed at completion of delta pro-

cessing).

-glist Speciﬁes a list (see get(1) for the deﬁnition of list ) of deltas which are to be ignored

when the ﬁle is accessed at the change level (

SID) created by this delta.

-m[mrlist] If the SCCS ﬁle has the v ﬂag set (see admin(1)), a Modiﬁcation Request (

MR)

number must be supplied as the reason for creating the new delta.

-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 com-

ments? prompt (see the -y option).

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 assumed to be the name of a

program (or shell procedure) that is to validate the correctness of the MR numbers.

If a non-zero exit status is returned from the MR number-validation program,

delta assumes that the MR numbers were not all valid and terminates.

-y[comment] Arbitrary text used to describe the reason for making the delta. A null string is

considered a valid comment .

-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 ter-

minates the comment text.

-p Causes delta to print (on the standard output in a diff(1) format) the SCCS ﬁle

differences before and after the delta is applied.

EXTERNAL INFLUENCES

Environment Variables

LC_CTYPE determines the interpretation of text as single- and/or multi-byte characters.

HP-UX 11i Version 3: September 2010 − 1 − Hewlett-Packard Company 1

Summary of content (2 pages)

PAGE 1
delta(1) delta(1) NAME delta - make a delta (change) to an SCCS file SYNOPSIS delta [-r SID ] [-s] [-n] [-g list ] [-m mrlist ] [-y comment ] [-p] files DESCRIPTION The delta command is used to permanently introduce into the named SCCS file changes that were made to the file retrieved by get (called the g-file , or generated file). See get (1). delta makes a delta to each named SCCS file.
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delta(1) delta(1) LC_MESSAGES determines the language in which messages are displayed. If LC_CTYPE or LC_MESSAGES is not specified in the environment or is set to the empty string, the value of LANG is used as a default for each unspecified or empty variable. If LANG is not specified or is set to the empty string, a default of "C" (see lang (5)) is used instead of LANG. If any internationalization variable contains an invalid setting, delta behaves as if all internationalization variables are set to "C".