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| A '''command procedure''' is a file that holds a sequence of DCL commands to be executed by the system in sequence interactively or as a batch job - essentially a [[DCL]] script. Command procedure files have the [[File extension|extension]] of .COM (this is not required; however, this is the default file type for [[@|interactive command procedure execution]].
| | #REDIRECT [[Command procedure]] |
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| =Rules=
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| The following is required for OpenVMS command procedures:
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| 1. Every line in a command procedure that is not a data line has to begin with the dollar sign ($):
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| <nowiki>
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| $ if f$mode() .nes. "INTERACTIVE" then exit
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| </nowiki>
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| 2. [[Comment|Comments]] begin with an exclamation point (!). Comment lines begin with a dollar sign AND an exclamation point ($!):
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| <nowiki>
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| $ if count .eq. 5 !Last element
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| $! Return to the previous level
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| </nowiki>
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| =Example=
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| <nowiki>
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| $! This command procedure displays a message based on the current day of the week.
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| $ say := write sys$output
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| $ day = f$cvtime(,,"WEEKDAY")
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| $! show sym day
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| $ say "Hooray, it's ''day'!"
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| </nowiki>
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| =Command procedures used by OpenVMS=
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| * [[AUTOGEN]]
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| * [[LOGIN.COM]]
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| * [[:Category:Startup Command Procedures|Startup Command Procedures]]
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