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Top Forums UNIX for Dummies Questions & Answers to read variable from child script Post 302345968 by scripter.online on Thursday 20th of August 2009 05:59:57 PM
Old 08-20-2009
Quote:
Originally Posted by ssuresh1999
Hi Thanks for your replies
Chompy.....thank you but this is the way i do but i thought that there might be another smarter way to do it that is why i posted it

scripter.online .........thank you but echo would work but manupulation of the variable doesnt work

Hi ,

Please check

Code:
 
$ cat a.sh
export VAR_A=9
echo In a.sh VAR_A : $VAR_A
./b.sh

$ cat b.sh
echo In b.sh VAR_A : $VAR_A
VAR_A=`expr ${VAR_A} + 9 `
echo In b.sh After adding VAR_A to VAR_A : $VAR_A
$

$ ./a.sh
In a.sh VAR_A : 9
In b.sh VAR_A : 9
In b.sh After adding VAR_A to VAR_A : 18
$


Last edited by scripter.online; 08-20-2009 at 07:07 PM..
 

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SHCOMP(1)						       Korn shell utilities							 SHCOMP(1)

NAME
shcomp - compile a shell script SYNOPSIS
shcomp [ options ] [infile [outfile]] DESCRIPTION
Unless -D is specified, shcomp takes a shell script, infile, and creates a binary format file, outfile, that ksh can read and execute with the same effect as the original script. Since aliases are processed as the script is read, alias definitions whose value requires variable expansion will not work correctly. If -D is specified, all double quoted strings that are preceded by $ are output. These are the messages that need to be translated to locale specific versions for internationalization. If outfile is omitted, then the results will be written to standard output. If infile is also omitted, the shell script will be read from standard input. OPTIONS
[D dictionary] Generate a list of strings that need to be placed in a message catalog for internationalization. [n noexec] Displays warn- ing messages for obsolete or non-conforming constructs. [v verbose] Displays input from infile onto standard error as it reads it. EXIT STATUS
0 Successful completion. >0 An error occurred. SEE ALSO
ksh(1) IMPLEMENTATION
version shcomp (AT&T Research) 2003-03-02 author David Korn <dgk@research.att.com> copyright Copyright (c) 1982-2010 AT&T Intellectual Property license http://www.opensource.org/licenses/cpl1.0.txt 2003-03-02 SHCOMP(1)
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