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Top Forums Shell Programming and Scripting Setting Environment variable from value in file Post 302400908 by WolfBrother on Thursday 4th of March 2010 12:03:34 PM
Old 03-04-2010
Quote:
Originally Posted by vbe
???

Why not give the requested value as an argument of your script?
(will avoid the editing phase...)
Good question - the script generally is a self contained script that may have to be executed by someone who may not know the valid value for that specific application.

I am an Oracle DBA. The specific scripts I'm dealing with are for one specific system. The backup parm is a sched id. For that one specific system there are three values. Other systems I have range from one completely different sched id to 5 differing sched ids. All specific to the system/DB instance they're backing up. Somewhere around 50 different ones just for the DBs I'm primary on. We're a fairly large organization, we have 15+ DBA's so you get an idea as to just the number of sched ids we'd have to remember.

I try to write my scripts so that all you have to do is execute the script without having to know the specifics to that system.

We source an instance specific <SID>.env file for specific environment variables. I could set them there but would still multiple edits if a sched id changes again.

Putting those environment variables common to several scripts known to have a history of being changed (like the sched ids for our backups) in a file that multiple scripts get the value from cuts down the number of edits made (and consequently the number of possible mistakes I could make).

Our scripting guru decided that Oregon was a better place to go so I'm having to learn more now.

Thanks.
Wolf Brother
 

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face(1) 							   User Commands							   face(1)

NAME
face - executable for the Framed Access Command Environment Interface SYNOPSIS
face [-i init_file] [-c command_file] [-a alias_file] [filename...] DESCRIPTION
The Framed Access Command Environment Interface (FACE) presents your files and file folders on the screen through a system of menus and forms if you are properly set up as a FACE user. filename must follow the naming convention Menu.xxx for a menu, Form.xxx for a form, and Text.xxx for a text file, where xxx is any string that conforms to the UNIX system file naming conventions. The Form and Menu Language Interpreter (FMLI) descriptor lifetime will be ignored for all frames opened by argument to face. These frames have a lifetime of immortal by default. If filename is not specified on the command line, the FACE Menu will be opened along with those objects specified by the LOGINWIN environment variables. These variables are found in the user's .environ file. OPTIONS
The following options are supported: -a alias_file Alias file -c command_file Command file -i init_file Initial file OPERANDS
The following operand is supported: filename The full pathname of the file describing the object to be opened initially. EXIT STATUS
The face command will return a non-zero exit value if the user is not properly set up as a FACE user. FILES
$HOME/pref/.environ ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWfac | +-----------------------------+-----------------------------+ SEE ALSO
env(1), attributes(5) SunOS 5.10 5 Jul 1990 face(1)
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