invoking one shell script from other


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting invoking one shell script from other
# 1  
Old 05-18-2006
invoking one shell script from other

hi,

i am one day old in shell scritpting. how to invoke one shell script from the other?
For eg.i have two shell scripts A.sh and B.sh. Inside A.sh i need to invoke B.sh and the return code of A.sh should be the value returned by B.sh.

it would be better if you provide any sample shell scripts.

Thanks,
Ajay.
# 2  
Old 05-18-2006
1.

A.sh call B.sh

just put
B.sh
as a command in the shell script e.g.
cp ... ...
ls ... ...
B.sh

etc...

Remeber the user running the script must also has execute permission for B.sh

2. The return value of A.sh
is controlled by either
exit <value>
or the return code of the last command
so if B.sh was you last command in A.sh then the return code of B.sh = return code of A.sh

However if you have more commands after B.sh in the script, you can save the return value of B.sh using

B.sh
retcode = $?
....
....
exit $retcode
(differs for whatever shell you use but $? is the return code of your last command.)

Hope it helps
# 3  
Old 05-19-2006
invoking one shell script from other

Thanks for your reply. but still i am having some doubts

i went through some of the websites. its quoted that "use $? very rarely".

is it a good practice to use this? (pradon me if i am wrong i dont have much idea in scripting)
# 4  
Old 05-24-2006
Please ignore this!

another similar problem is

assume that
./a.sh will gives some output

./a.sh>a.out will redirect the output to some file a.out

Now i want to do same from another script insted of directly writting in prompt.
contents of b.sh will be

`./a.sh>a.out`

now when i run b.sh output is echoed to the screen insted of writing to a.out.
How come? Some solution to this Smilie

Last edited by yogesh_powar; 05-24-2006 at 04:55 AM.. Reason: hey i got my mistake. please ignore this
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Invoking Application in Shell Script

Hi All, I have a scenario : 1. A list of servers naming server21, server 22, server 23 etc. This list of servers is separate for my environments. Env1 has 3 server Env2 has 5 serves Env3 has 10 servers 2. Each server accesses application through which I want to invoke some method. So... (7 Replies)
Discussion started by: ankur328
7 Replies

2. Shell Programming and Scripting

Problem invoking shell script

whats wrong here?! ________________ #!/bin/sh # FILE: clean_dirs # GOAL : To clean up directories used in Oracle processing # LANGUAGE : shell script (sh) # PARAMETERS : Input_File # 11/07/02 acri - modified to cd into the directory so it will... (7 Replies)
Discussion started by: gillraj
7 Replies

3. Shell Programming and Scripting

Invoking one shell script from another unix box

Hello All, I have a shell script A which is in one unix box. Also i have a script B in another unix box. Now i'm struggling to find a way to invoke A shell script from B shell script. Is it possible to do this in any way..Request you anybody please help me in this point. Thanks in advance. (6 Replies)
Discussion started by: RSC1985
6 Replies

4. Shell Programming and Scripting

Invoking Oracle stored procedure in unix shell script

Here's a shell script snippet..... cd $ORACLE_HOME/bin Retval=`sqlplus -s <<eof $TPDB_USER/april@$TPD_DBCONN whenever SQLERROR exit 2 rollback whenever OSERROR exit 3 rollback set serveroutput on set pages 999 var status_desc char(200) var status_code... (1 Reply)
Discussion started by: hidnana
1 Replies

5. UNIX for Advanced & Expert Users

Invoking shell script with perl command.

Hi All, I am using the following command to invoke the shell script from a perl command. perl -i.bak -pe'BEGIN { $cmd = "/opt/coreservices/tomcat-5.5.9/bin/digest.sh -a sha"; } s/(password=")(*)/ $1.`$cmd $2|cut -d: -f2|tr -d "\n"` /e ' $CATALINA_HOME/conf/tomcat-users.xml I need... (1 Reply)
Discussion started by: nua7
1 Replies

6. Shell Programming and Scripting

invoking a shell script inside cgi shell script

Hi, I have an HTML form through which I get some text as input. i need to run a shell script say script.sh inside a perl-cgi script named main_cgi.sh on the form input. I want to write the contents of the form in a file and then perform some command line operations like grep, cat on the text... (2 Replies)
Discussion started by: smriti_shridhar
2 Replies

7. Shell Programming and Scripting

returning to the parent shell after invoking a script within a script

Hi everybody, I have a script in which I'm invoking another script which runs in a subshell. after the script is executed I want to return to the parent shell as some variables are set. However i'm unable to return to my original shell as the script which i'm calling inside is invoked in... (5 Replies)
Discussion started by: gurukottur
5 Replies

8. Shell Programming and Scripting

Invoking Shell Script via php

list me commands to invoke a shell script from php once the submit button is clicked in the php page. Requirement is Once a submit button is clicked it should run a script that displays the outcome of the script in a html/php. Please help. Thanks in Advance, BubeshJ (2 Replies)
Discussion started by: bubeshj
2 Replies

9. Shell Programming and Scripting

Invoking shell script from html/jsp page

I want to invoke shell script named bubesh.sh when submit button clicked on html/jsp page.I am using an apache server and the html & shell script are in the same working directory.Please help. (2 Replies)
Discussion started by: bubeshj
2 Replies

10. Shell Programming and Scripting

Wrong Shell Invoking My Script On Linux

I have a shell script that does NOT have the '#!' line at the top. It is written for ksh. The shell in my passwd entry is '/usr/bin/ksh' and my SHELL env variable is '/usr/bin/ksh'. Now, here's the issue. I invoke the script on Solaris with './myprog'. This works fine. I also run the same... (3 Replies)
Discussion started by: kowrip
3 Replies
Login or Register to Ask a Question