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Full Discussion: Variable in While Loop Nested If
Top Forums Shell Programming and Scripting Variable in While Loop Nested If Post 302112110 by Dhruva on Monday 26th of March 2007 03:15:34 AM
Old 03-26-2007
Hi perdarabo,I ran the script with small modification but it gives desired result with ksh shell and not in sh shell
please suggest why it is happening


Code:
#Constants and Globals
USER_EXISTS=1
USER_DOESNT_EXIST=0
user_name=$1

#g_exitcode
#export g_exitcode

#note: I parse the $user_name from the command line arguments

#Main
g_exitcode=$USER_DOESNT_EXIST
export g_exitcode

cat kas|{ while read i
 do
echo "$i : $user_name"
#compare the user_name with each entry in the kas database
if [ "$user_name" = "$i" ]; then
#Match found
echo "match found"
echo "$g_exitcode"
g_exitcode=$USER_EXISTS
echo "$g_exitcode"
echo "$g_exitcode $USER_EXISTS"


#break
fi

done }
echo "exit code $g_exitcode"
exit $g_exitcode

output with sh shell
Code:
> sh u102.sh sunil
sunil : sunil
match found
0
1
1 1
exit code 0

output with ksh
Code:
> ksh u102.sh sunil
sunil : sunil
match found
0
1
1 1
exit code 1

 

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LEARN ABOUT OPENSOLARIS

times

times(1)							   User Commands							  times(1)

NAME

       times - shell built-in function to report time usages of the current shell

SYNOPSIS

   sh
       times

   ksh
       times

DESCRIPTION

   sh
       Print the accumulated user and system times for processes run from the shell.

   ksh
       Print the accumulated user and system times for the shell and for processes run from the shell.

       On this man page, ksh(1) commands that are preceded by one or two * (asterisks) are treated specially in the following ways:

	   1.	  Variable assignment lists preceding the command remain in effect when the command completes.

	   2.	  I/O redirections are processed after variable assignments.

	   3.	  Errors cause a script that contains them to abort.

	   4.	  Words, following a command preceded by ** that are in the format of a variable assignment, are expanded with the same rules as a
		  variable assignment. This means that tilde substitution is performed after the = sign and word splitting and file  name  genera-
		  tion are not performed.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       ksh(1), sh(1), time(1), attributes(5)

SunOS 5.11							    15 Apr 1994 							  times(1)
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