Command Reference Guide

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cdc(1) cdc(1)

NAME

cdc - change the delta commentary of an SCCS delta

SYNOPSIS

cdc -r SID [-m[mrlist ]] [-y[comment ]] ﬁles

DESCRIPTION

The cdc command changes the delta commentary, for the SID speciﬁed by the -r option, of each named

SCCS ﬁle.

Delta commentary is deﬁned to be the Modiﬁcation Request (MR) and comment information normally

speciﬁed via the delta(1) command (-m and -y options).

If a directory is named, cdc behaves as if each ﬁle in the directory were 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 standard input is read (see WARNINGS); each line of the stan-

dard input is taken to be the name of an SCCS ﬁle to be processed.

Options

Arguments to cdc, which can appear in any order, consist of option arguments and ﬁle names.

All of the described option arguments apply independently to each named ﬁle:

-rSID Used to specify the SCCS IDentiﬁcation (SID) string of a delta for which the delta com-

mentary is to be changed.

-m[mrlist] If the SCCS ﬁle has the v option set (see admin(1)), a list of

MR numbers to be added

and/or deleted in the delta commentary of the

SID speciﬁed by the

-r option may be

supplied. A null

MR list has no effect.

MR entries are added to the list of MRs in the same manner as that of delta(1). To

delete an

MR, precede the MR number with the character ! (see EXAMPLES). If the

MR to be deleted is currently in the list of MRs, it is removed and changed into a ‘‘com-

ment’’ line. A list of all deleted MRs is placed in the comment section of the delta com-

mentary and preceded by a comment line stating that they were deleted.

If -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 comments?

prompt (see -y option).

MRs in a list are separated by blanks and/or tab characters. An unescaped new-line

character terminates the MRs list.

Note that if the v option has a value (see admin(1)), it is treated as the name of a pro-

gram (or shell procedure) that validates the correctness of the MR numbers. If a non-

zero exit status is returned from the MR number validation program, cdc terminates

and the delta commentary remains unchanged.

-y[comment] Arbitrary text used to replace the comment or comments already existing for the delta

speciﬁed by the -r option. Previous comments are kept and preceded by a comment

line stating that they were changed. A null comment has no effect.

If -y is not speciﬁed and the standard input is a terminal, the prompt comments?

is issued on the standard output before standard input is read; if standard input is not

a terminal, no prompt is issued. An unescaped new-line character terminates the

comment text.

The exact permissions necessary to modify the SCCS ﬁle are documented in get(1). Simply stated, they are

either:

• If you made the delta, you can change its delta commentary, or

• If you own the ﬁle and directory, you can modify the delta commentary.

EXTERNAL INFLUENCES

Environment Variables

LANG determines the language in which messages are displayed.

Section 1−−68 − 1 − HP-UX Release 11i: December 2000

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