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Full Discussion: What is the use of command set -- and set - variable?
Operating Systems HP-UX What is the use of command set -- and set - variable? Post 302487115 by methyl on Tuesday 11th of January 2011 12:19:34 PM
Old 01-11-2011
Code:
From "man sh-posix".
 
          -    Turn off -x and -v options and stop examining arguments for
                options.

           --   Do not change any of the options; useful in setting
                parameter 1 to a value beginning with -.  If no arguments
                follow this option, the positional parameters are unset.

Code:
Examples

set -x
# Script lines we want to debug
... lots of script lines ...
# Turn off debug
set -

# scriptname.sh
echo "Value is: $1"
set --
# Unset positional parameters $1 $2 etc.
echo "Value is: $1"

./scriptname,sh param1
Value is: param1
Value is:

Last edited by methyl; 01-11-2011 at 08:15 PM.. Reason: minor typos
 

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LEARN ABOUT SUNOS

asadmin-export

asadmin-export(1AS)						   User Commands					       asadmin-export(1AS)

NAME

       asadmin-export, export - marks a variable name for automatic export to the environment of subsequent commands in multimode

SYNOPSIS

       export  [ name=value  [ name=value]*]

       Marks  a variable name for automatic export to the environment of subsequent commands. All subsequent commands use the variable name values
       as specified; unless you unset them or exit multimode. If only the variable name is specified, the current value of that variable  name	is
       displayed.  If  the  export  command  is  used  without	any arguments, a list of all the exported variables and their values is displayed.
       Exported shell environment variables set prior to invoking the asadmin utility are imported automatically and  set  as  exported  variables
       within asadmin. Unexported environment variables cannot be read by the asadmin utility.

OPERANDS

       name=value	       variable name and value for automatic export to the environment to be used by subsequent commands.

       Example 1: Using export to list the environment variables

       asadmin> export AS_ADMIN_HOST=bluestar AS_ADMIN_PORT=8000 AS_ADMIN_USER=admin AS_ADMIN_PASSWORD=password
       asadmin> export AS_ADMIN_PREFIX=server1.jms-service
       asadmin> export //to list the environment variables that are set
       AS_ADMIN_HOST=bluestar
       AS_ADMIN_PORT=8000
       AS_ADMIN_USER=admin
       AS_ADMIN_PASSWORD=********
       AS_ADMIN_PREFIX=server1.jms-service

       Where:  the export command lists the environment variables that are set. In this case, the environment variables have been set to: the host
       is bluestar, the port is 8000, the administrator user is admin with an associated password, and the prefix is server1.jms-service.

EXIT STATUS

       0		       command executed successfully

       1		       error in executing the command

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

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