Checking Exit Status


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Checking Exit Status
# 1  
Old 10-18-2005
Checking Exit Status

I hope one of you smart people out there can help me with what seems like a real simple questing but I can't quite figure out.

In a script I am doing a cmp on two files. I am trying to check the exit status with an if statement but can't seem to figure out the syntax. If the exit status is 1 I want to do something else something else. I am using Solaris 8 and my shell is ksh.
# 2  
Old 10-18-2005
Hi,
As far as I know any unix command returns a return code. Depending on the shell you use the check may slightly differ.

If you are using ksh - The following should work

....your command here....
rtrncd=$?
if [ $rtrncd -ne 0 ]
then
echo problems # problem happened
exit $rtrncd # exit with the same bad return code
fi
# no problems happened - Continue with your scrip
....possibly more code here....

Hope this helps
# 3  
Old 10-19-2005
Well I do not get the errors I was getting. Here is what I have in the script followed by the error message.

#!/usr/bin/ksh

cmp file1 file2

rtrncd=$?

if [$rtrncd -ne 0 ] then
cat error-message-file | mailx -s "Error `date`" email address
exit $rtrncd
fi


The error I get is
check_rep2.sh[7]: syntax error at line 11 : 'fi' unexpected


Mike
# 4  
Old 10-19-2005
You need spaces around [ and ] and also "then" is a separate command...you must put it on a new line or use a semicolon.

if [ $rtrncd -ne 0 ] ; then
# 5  
Old 10-19-2005
That's it. Thanks for the help.

Mike
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Want to get the exit status

Hi All, I am trying to create a zip file with all the txt files(these are in large number) in the current directory. I am able to do this operation sucessfully. After this i want to get the status of the tar command executed and do accordingly. When i am trying with the below code, the status... (3 Replies)
Discussion started by: paddu
3 Replies

2. Shell Programming and Scripting

Exit Status

I have a shell script (#!/bin/sh) that interacts with Appworx and Banner Admin. In my script I want to check the exit status of awrun before continuing. awrun can run for 10 seconds or it can run for over a minute. So my question is, will it go through my if statement before awrun may even be... (2 Replies)
Discussion started by: smkremer
2 Replies

3. UNIX for Dummies Questions & Answers

service exit status

what are the number for the exit status for command service and what does every number mean. (2 Replies)
Discussion started by: programAngel
2 Replies

4. Shell Programming and Scripting

Exit status of grep

I am trying to get the exit status of grep and test a condition with it, But it does not seem to be working as expected since i am doing something wrong apparently as per grep help Exit status is 0 if match, 1 if no match, and 2 if trouble. My problem is something like this templine - a... (7 Replies)
Discussion started by: prasbala
7 Replies

5. Shell Programming and Scripting

Exit status

I'm preparing for exam and one of exams is to write own test command... I wonder if in unix is a command which just returns exit code you specify.. I know I can easily write a function like this: exStatus() { return $1 } -> my question is rather theoretical thank you! (9 Replies)
Discussion started by: MartyIX
9 Replies

6. Shell Programming and Scripting

How to get the exit status

Hi all, I'm running a program which return 1 upon success. But when encounters problem shell return 's '1' . How to differentiate between them the shell return value and script return value. Ex. function fn return '1' if executed successfully and '0' if failed. But when if shell encounters... (1 Reply)
Discussion started by: yhacks
1 Replies

7. HP-UX

Return of EXIT status ( $? )

I have the question: How return the exit code from then assign : VAR=$(command ) for ex. VAR=$(ls ....) VAREXIT=$? echo $VAREXIT VAREXIT is equal to 0 if the directory exist or not exist. WHI?? if i execute the command direct from line-command , the value of $? is different if... (1 Reply)
Discussion started by: ZINGARO
1 Replies

8. Shell Programming and Scripting

checking exit status of a shell script

Hi, I have tried with the following code; if ;then echo "Failure." else echo "Success." fi to test the exit status of the test.ksh shell script. But whatever is the exit status of the test.ksh shell script Failure. is always printed. Please help. regards, Dipankar. (2 Replies)
Discussion started by: kdipankar
2 Replies

9. Shell Programming and Scripting

Problem with exit status

Hi, Consider the output of the following commands: case1) ------- # ifconfig -a | grep "UP" | grep uplink0:1 # echo $? Output is: 0 case2 ------ # ifconfig -a | grep "UP" | grep uplink0:1; echo $? Output is: 1 In case2 we got the exit code as 1, which is the actual exit code.... (1 Reply)
Discussion started by: diganta
1 Replies

10. Shell Programming and Scripting

exit status

i downloaded a text file from metalab.unc.edu called sh.txt and in this reference manual it refers to shell scripting exit status .. at the end of one of the examples that author gave an exit status of 127.. to what does a 127 exit status refer too and what is its purpose in the code. moxxx68 (1 Reply)
Discussion started by: moxxx68
1 Replies
Login or Register to Ask a Question