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Full Discussion: Setting Environment variable from value in file
Top Forums Shell Programming and Scripting Setting Environment variable from value in file Post 302401303 by WolfBrother on Friday 5th of March 2010 12:36:29 PM
Old 03-05-2010
Quote:
Originally Posted by methyl
What shell do you use (ksh, bash, sh ... whatever) ?
What are the names and example values of the three environment variables?

The sourcing using dot-space-scriptname advised above is the correct method.

Korn Shell. 1 environment variable - 3 possible values at this time.

File names and value's
1mo - XFG1moDR
2mo - XFG2mo
3mo - XFG3mo.

The environment variable in one of the korn shell scripts needing one of the three values depending on the backup requirements:
NB_ORA_SCHED.

I'm wanting to read/source/bring in the value of one the 3 files.
As in
whatever it takes to get 1mo value into a variable in the shell and then:
export NB_ORA_SCHED=<shell variable>

I have 17 Oracle instances on a very large server,
each instance with it's own backup script.

9 uses the value in 3mo, 6 uses the value in 2mo, and 2 uses the value in 1mo as the value for the environment variable NB_ORA_SCHED.

Over the past few years - as the process changes - these values have changed. SO rather than manually editing 17 scripts to change the value, I'm wanting to edit 1 of 3 files as needed.

Again, these scripts are parameterized to some degree within the script. However, they are written so that if my backup, my backup's backup, my backup's backup's backup, and I get hit with a bus, any DBA can be given access to the server and will be able to manually (if needed) submit the backup without having to know anything other than
1. log on to server
2. go to this place
3. manually submit this .ksh script.

The plan is to make it as simple as it should be but no simpler.

As a note. Above, when I mentioned the process, you need to understand the way its done here. We have any number of pointy headed managers who feel the need to do something managerish fairly frequently. One way to do that is to rename items. So what one month may be bk_onsite_1mo may become XFG1mo the next.

You must understand - the process is paramount. Resistance is futile, you will be assimilated.

Being able to put values that change into a file that get read into a ksh script is one way to cut down on the impact of such managerish actions.

The scripting guru was not assimilated, he managed to go somewhere else. Me, I get to learn more about Korn shell scripting now.

Thanks again.
WolfBrother
 

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LEARN ABOUT SUSE

face

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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