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Full Discussion: Trying to figure out how the environment variables are being set
Top Forums UNIX for Beginners Questions & Answers Trying to figure out how the environment variables are being set Post 302998519 by Don Cragun on Friday 2nd of June 2017 04:28:33 PM
Old 06-02-2017
You use the dot command:
Code:
. filename

to have the current shell execute the commands in filename in your current shell execution environment. This works as long as filename is readable by you. Since the commands in filename were executed in the current shell execution environment, any variables set while it was running will be available for you to use in subsequent commands.

You use the command:
Code:
filename

(without the .) to run the commands in filename in a separate shell execution environment . When the commands in filename are done, that separate shell execution environment is deleted and anything that commands in filename did that did not change other files or were not written somewhere disappear. This doesn't work unless you have permission to execute filename and filename is on your search path for commands (as specified by the PATH environment variable).

But, it is also possible for a shell script to set up an environment and invoke an interactive database session. That script will not end until the interactive session is terminated by logging out of the database session.

All of the above are possible whether or not filename's first character is a <period>. The best way to figure out what a script might do is usually to read the file and look at the manual pages for your system to figure out what the commands in that file are doing.
 

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LEARN ABOUT SUNOS

multimode

asadmin-multimode(1AS)													    asadmin-multimode(1AS)

NAME

       asadmin-multimode,  multimode  - allows you to execute multiple commands while preserving environment settings and remaining in the asadmin
       utility

SYNOPSIS

       multimode [--file filename] [--printprompt=true] [--encoding encode] [--terse=false] [--echo=false]

       Use multimode to process the asadmin commands. The command-line interface will prompt you for a command, execute that command, display  the
       results	of the command, and then prompt you for the next command. Additionally, all the asadmin option names set in this mode are used for
       all the subsequent commands. You can set your environment and run commands until you exit multimode by typing "exit"  or  "quit."  You  can
       also provide commands by passing a previously prepared list of commands from a file or standard input (pipe). You can invoke multimode from
       within a multimode session; once you exit the second multimode environment, you return to your original multimode environment.

       This command is supported in local mode only.

       --file		       reads the commands as defined in the file.

       --printprompt	       allows the printing of asadmin prompt after each command is executed. Set this option to false  when  the  commands
			       are piped or redirected from the standard input or file. By default the option is set to true.

       --encoding	       specifies the locale for the file to be decoded.

       --terse		       indicates that any output data must be very concise, typically avoiding human-friendly sentences and favoring well-
			       formatted data for consumption by a script. Default is false.

       --echo		       setting to true will echo the command line statement on to the standard output. Default is false.

       Example 1: Using multimode to execute multiple commands

       example% asadmin multimode --file commands_file.txt

       Where: example% is the system prompt. The multimode settings are executed from the commands_file.txt file.

EXIT STATUS

       0		       command executed successfully

       1		       error in executing the command

       asadmin-export(1AS), asadmin-unset(1AS)

J2EE 1.4 SDK							    March 2004						    asadmin-multimode(1AS)
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