Jane.doe: Created page with "'''LOGIN.COM''', or the '''personal login command procedure''', is the default name for a command procedure that is executed before each user's Process..."

2019-11-28T12:18:32Z

Created page with "'''LOGIN.COM''', or the '''personal login command procedure''', is the default name for a command procedure that is executed before each user's Process..."

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'''LOGIN.COM''', or the '''personal login command procedure''', is the default name for a [[Command Procedure|command procedure]] that is executed before each user's [[Process|process]] runs ([[Interactive Process|interactive]], [[Batch Process|batch]] or otherwise). Unless a different file specification is supplied in the user's [[SYSUAF]] record's LGICMD field, the system will look for a file called LOGIN.COM in the user's [[Default directory|default directory]] and if found execute the latest version of it. LOGIN.COM is usually used to customize the user's environment: set up their [[SET TERMINAL|terminal]], define [[Logical Name|logical names]], [[Symbol|symbols]] and [[Foreign Command|foreign commands]], [[SET PROMPT|set prompt]], display important information, etc. In case of a [[Captive Account|captive account]], the personal login command procedure limits the user's actions, usually providing a menu and never allowing the user access to [[DCL]].

=Batch Considerations=
LOGIN.COM executes before every [[Batch Job|batch job]] that a user runs, which could possibly lead to:
* the batch process hanging if LOGIN.COM contains commands requiring terminal interaction, such as [[SET TERMINAL]]/INQUIRE or [[INQUIRE]], because there is no terminal
* uncontrollable creation of batch processes if LOGIN.COM contains [[SUBMIT]] commands
* longer execution times if LOGIN.COM is long and performs actions unnecessary for the purposes of the batch job etc.

The following code determines the mode in which the process runs and branches to the commands specific to that mode:
<nowiki>
$ GOTO 'F$MODE()'
$INTERACTIVE:
$! put your interactive commands here
$
$
$ EXIT
$BATCH:
$! put your batch mode commands here
$
$
$ EXIT
$NETWORK:
$OTHER:
$ EXIT
</nowiki>

[[Category:Command Procedures]]

LOGIN.COM - Revision history

Jane.doe: Created page with "'''LOGIN.COM''', or the '''personal login command procedure''', is the default name for a command procedure that is executed before each user's Process..."