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What is the use of command set -- and set - variable?

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Operating Systems HP-UX What is the use of command set -- and set - variable?
# 1  
Old 12-13-2010
What is the use of command set -- and set - variable?
Hi,

I am using hp unix

i want to know the use of the following commands

set --
set - variable

thanks
# 2  
Old 12-13-2010
HP-UX is an Operating System.
Code:
What version of HP-UX are you running?
uname -sr

Code:
What Shell are you using?
echo "${SHELL}"


The "set" command is described in the "man" page for your Shell.
If you have a modern HP-UX with the default Posix Shell see "man sh-posix".
# 3  
Old 12-13-2010
unix version HP-UX B.11.23
shell ==> sh
# 4  
Old 12-14-2010
this man sh-posix" has more details.. i need some example
# 5  
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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