Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: scope of the variable - Naga
Top Forums Shell Programming and Scripting scope of the variable - Naga Post 302310858 by zedex on Monday 27th of April 2009 08:38:18 AM
Old 04-27-2009
try changing the shell use ksh/bash and then try ..

Code:
$ cat num
1
2
3
$ 

$ cat a.sh
i=0                         # Look i have not specified any shell here ..
while read j
do
    if [ ! -z "$j" ]        # CHECK IF LINE IS NOT ZERO ( EMPTY ) 
    then
        i=$(( $i + $j ))
    fi
done < num
echo "Total is : [$i]"
$

$ bash a.sh ; ksh a.sh
Total is : [6]
Total is : [6]
$

 

10 More Discussions You Might Find Interesting

1. Programming

C++ variable scope and mutexes

I've been wondering if I can make mutexes much easier to use in C++ with creative use of a locking class and variable scope, but I'm not sure if things happen in the order I want. Here's pseudocode for something that could use the class: int someclass::getvalue() { int retval; ... (0 Replies)
Discussion started by: Corona688
0 Replies

2. Shell Programming and Scripting

problem with shell variable's scope

Hi, I am stuck while developing a shell sub-routine which checks the log file for "success" or "failure". The subroutine reads the log file and checks for key word "success", if found it set the variable (found=1). It returns success or failure based on this variable. My problem is, I can... (2 Replies)
Discussion started by: cjjoy
2 Replies

3. Shell Programming and Scripting

variable scope

Hi, I want to know about the variable scope in shell script. How can we use the script argument inside the function? fn () { echo $1 ## I want this argument should be the main script argument and not the funtion argument. } also are there any local,global types in shell script? if... (3 Replies)
Discussion started by: shellwell
3 Replies

4. Shell Programming and Scripting

[SOLVED] Scope of KSH Variable in Perl?

cat test.ksh #!/usr/bin/ksh VAR="Dear Friends \n How are you? \n Have a nice day \n" export VAR echo "Inside test.ksh"; ./test.pl cat test.pl #!/usr/bin/perl print "Inside test.pl \n"; print "$VAR"; Output: ./test.ksh Inside test.ksh Inside test.plWhat I want to achieve is, I... (1 Reply)
Discussion started by: dahlia84
1 Replies

5. UNIX for Dummies Questions & Answers

Bash loops and variable scope

Hi All, I've been researching this problem and I am pretty sure that the issue is related to the while loop and the piping. There are plenty of other threads about this issue that recommend removing the pipe and using redirection. However, I haven't been able to get it working using the ssh and... (1 Reply)
Discussion started by: 1skydive
1 Replies

6. Shell Programming and Scripting

Help with retaining variable scope

Hi, I use Korn Shell. Searched Forum and modified the way the file is input to the while loop, but still the variable does not seem to be retaining the final count. while read name do Tmp=`echo $name | awk '{print $9 }'` Count=`cat $Tmp | wc -l`... (6 Replies)
Discussion started by: justchill
6 Replies

7. Shell Programming and Scripting

Variable scope in bash

Hello! Before you "bash" me with - Not another post of this kind Please read on and you will understand my problem... I am using the below to extract a sum of the diskIO on a Solaris server. #!/bin/sh PATH=/usr/bin:/usr/sbin:/sbin; export PATH TEMP1="/tmp/raw-sar-output.txt$$"... (3 Replies)
Discussion started by: haaru
3 Replies

8. Shell Programming and Scripting

Maintain Scope of the variable in UNIX

Hi All Is there is any way to maintain the scope of the variable in unix Example x=1 j=1 while do .. .... .... while do .. .. x=x+1 done #inner most while loop ends here done #outer loop ends here (8 Replies)
Discussion started by: parthmittal2007
8 Replies

9. Shell Programming and Scripting

BASH: variable and function scope and subscripts

Hi, I'm a Delphi developer new to linux, new to this forums and new to BASH programming and got a new task in my work: maintaining an existing set of BASH scripts. First thing I want to do is making the code more reliable as in my opinion it's really bad written. So here's the quest: I'm... (6 Replies)
Discussion started by: rse
6 Replies

10. Programming

Variable Scope in Perl

I have to admit that i have not used Perl at all and this is a singular occasion where i have to patch an existing Perl script. I dearly hope i do not have to do it again for the next 15 years and therefore try to avoid having to learn the programming language in earnest. The OS is AIX 7.1, the... (2 Replies)
Discussion started by: bakunin
2 Replies

LEARN ABOUT OPENSOLARIS

suspend

suspend(1)							   User Commands							suspend(1)

NAME

       suspend - shell built-in function to halt the current shell

SYNOPSIS

   sh
       suspend

   csh
       suspend

   ksh
       suspend

DESCRIPTION

   sh
       Stops the execution of the current shell (but not if it is the login shell).

   csh
       Stop the shell in its tracks, much as if it had been sent a stop signal with ^Z. This is most often used to stop shells started by su.

   ksh
       Stops the execution of the current shell (but not if it is the login shell).

ATTRIBUTES

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

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

SEE ALSO

       csh(1), kill(1), ksh(1), sh(1), su(1M), attributes(5)

SunOS 5.11							    15 Apr 1994 							suspend(1)
All times are GMT -4. The time now is 03:00 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy