Darya.zelenina: Created page with "A '''comment''' is a command line or part of a command line in DCL that is ignored by the CLI. Comments are marked with an exclamation point (!). =Example= Consider the f..."

2018-12-19T06:40:26Z

Created page with "A '''comment''' is a command line or part of a command line in DCL that is ignored by the CLI. Comments are marked with an exclamation point (!). =Example= Consider the f..."

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A '''comment''' is a command line or part of a command line in DCL that is ignored by the [[CLI]]. Comments are marked with an exclamation point (!).

=Example=
Consider the following command procedure, TEST.COM:
<nowiki>
$ show time !This comment is ignored
$! This entire line is ignored as well
</nowiki>
Here is the result of running it:
<nowiki>
$ @test
19-DEC-2018 11:19:38
</nowiki>

=Use=
The most important and obvious way to use comments is documenting a command procedure:
<nowiki>
$ ! Copyright (c) 1987 Digital Equipment Corporation. All rights reserved.
$ !
$ ! MONITOR.COM (Generate MONITOR recording file)
$ !
$ ! This command file is to be placed in a cluster-accessible
$ ! directory called SYS$MONITOR. At system startup time, for each
$ ! node, it creates in SYS$MONITOR a MONITOR recording file, which
$ ! is updated throughout the life of the boot. It also creates in
$ ! MON$ARCHIVE, a summary file from the recording file of the
$ ! previous boot, along with a copy of that recording file.
$ ! Logical name definitions for both cluster-accessible directories,
$ ! SYS$MONITOR and MON$ARCHIVE, must be included in SYSTARTUP.COM.
$ !
</nowiki>

Another use of comments is disabling a command line that is not needed now but may be needed in the future:
<nowiki>
$! Uncomment the following command to start the OpenVMS Management
$! Station server application.
$!
$!$ @SYS$STARTUP:TNT$STARTUP
</nowiki>

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Darya.zelenina: Created page with "A '''comment''' is a command line or part of a command line in DCL that is ignored by the CLI. Comments are marked with an exclamation point (!). =Example= Consider the f..."