If then else help in shell script


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting If then else help in shell script
# 8  
Old 04-01-2010
Thanks, alister. No luck, though.

Code:
if [ "`ps -ef  | grep  "ibiaud" | grep -v grep | tr -s " " | cut -d " " -f7`" =  "?" ]; then
        echo "not running"
else
        echo "running"
fi

returns:
./killscrp.sh: : execute permission denied
./killscrp.sh: test: unknown operator | cut -d

echo $SHELL returns:
/usr/bin/ksh
# 9  
Old 04-01-2010
You could try tracing the script's execution by adding "set -x" at the top of the script. Perhaps the output of that will give you a clue.
# 10  
Old 04-01-2010
Here is what I got after adding set -x to the top and running it again:

+ ps -ef
+ grep ibiaud
+ grep -v grep
+ tr -s
+
./killscrp.sh : execute permission denied
+ [ brsas2 74 1 0 22:53:23 ? 0:01 ./ibiaud | cut -d -f7 = ? ]
./killscrp.sh: test: unknown operator | cut -d
# 11  
Old 04-01-2010
Code:
if [ "`ps | grep  'ibiaud' | grep -v grep | tr -s ' ' | cut -d ' ' -f7`" ==  "?" ]; then

or
Code:
if [ "`ps | grep  \"ibiaud\" | grep -v grep | tr -s \" \" | cut -d \" \" -f7`" ==  "?" ]; then

# 12  
Old 04-01-2010
Both those return:
./killscrp.sh: test: unknown operator ==
# 13  
Old 04-01-2010
I must say, though, that it's odd that the following didn't work.
Code:
if [ "$(ps -ef  | grep  "ibiaud" | grep -v grep | tr -s " " | cut -d " " -f7)" =  "?" ]; then

I'm curious; if you don't mind, exactly what operating system and shell are you using (version and all, not just the executable's name), if you know.

Regards,
Alister

---------- Post updated at 03:39 PM ---------- Previous update was at 03:38 PM ----------

That crept in while i was testing a few things. Revert it to a single equals sign.
# 14  
Old 04-01-2010
Code:
Please post the output from:

ls -lad killscrp.sh

cat killscrp.sh

uname -a
(Blotting anything confidential like the server name)

echo $SHELL


Ps. So far not been able to determine where killscrp.sh is invoked.
Pps. There is a continued theme in alister's posts where the in-line execution sloping quotes `` are unmatched. The second "`" is consistently missing.
Hope this helps.
#

Last edited by methyl; 04-01-2010 at 09:06 PM.. Reason: Rant about quotes
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

Shell script newbie- how to generate service log from shell script

Hi, I am totally a newbie to any programming languages and I just started an entry level job in an IT company. One of my recent tasks is to create a script that is able to show the log file of linux service (i.e. ntpd service) lets say, if I run my script ./test.sh, the output should be... (3 Replies)
Discussion started by: xiaogeji
3 Replies

2. Shell Programming and Scripting

Pass C shell array to another C shell script(csh) and shell(sh)

Dear Friends, Please help me on this my script name is send.csh In this i have written the statement like this set args = ( city state country price ) I want to pass this array to another c shell called receiver.csh. and i want to use it in this c shell or how to pass to... (2 Replies)
Discussion started by: SA_Palani
2 Replies

3. Shell Programming and Scripting

How to write config shell script to pass variables in master shell script?

Dear Unix gurus, We have a config shell script file which has 30 variables which needs to be passed to master unix shell script that invokes oracle database sessions. So those 30 variables need to go through the database sessions (They are inputs) via a shell script. one of the variable name... (1 Reply)
Discussion started by: dba1981
1 Replies

4. UNIX for Dummies Questions & Answers

How to write Config shell script to pass variables in master shell script?

Dear Unix gurus, We have a config shell script file which has 30 variables which needs to be passed to master unix shell script that invokes oracle database sessions. So those 30 variables need to go through the database sessions (They are inputs) via a shell script. one of the variable name... (1 Reply)
Discussion started by: dba1981
1 Replies

5. Shell Programming and Scripting

Unable to pass shell script variable to awk command in same shell script

I have a shell script (.sh) and I want to pass a parameter value to the awk command but I am getting exception, please assist. diff=$1$2.diff id=$2 new=new_$diff echo "My id is $1" echo "I want to sync for user account $id" ##awk command I am using is as below cat $diff | awk... (2 Replies)
Discussion started by: Ashunayak
2 Replies

6. Shell Programming and Scripting

Correct shell script to Call One shell script from another shell script

Hi All, I have new for shell scripting. Problem : I have one scrip at serv1 and path of server is /apps/dev/provimage/scripts and script name:extract_ancillary.bat. I need to call this script at server2(my working server) and execute at server2 . Please let me know how to build the... (5 Replies)
Discussion started by: Vineeta Nigam
5 Replies

7. Shell Programming and Scripting

call another shell script and pass parameters to that shell script

Hi, I basically have 2 shell scripts. One is a shell script will get the variable value from the user. The variable is nothing but the IP of the remote system. Another shell script is a script that does the job of connecting to the remote system using ssh. This uses a expect utility in turn. ... (2 Replies)
Discussion started by: sunrexstar
2 Replies

8. Shell Programming and Scripting

How to use ssh execute other shell script on other host (shell script include nohup)?

i want use ssh on the host01 to execute autoexec.sh on the host02 like following : host01> ssh host02 autoexec.sh autoexec.sh include nohup command like follwing : nohup /home/jack/deletedata.sh & after i execute ssh host02 autoexec.sh one the host01. i can't found deletedata.sh... (1 Reply)
Discussion started by: orablue
1 Replies

9. 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

10. Shell Programming and Scripting

How to Run a shell script from Perl script in Parent shell?

Hi Perl/UNIX experts, I have a problem in running a shell script from my perl script (auto.pl). I run the perl script using perl auto.pl from the shell prompt The shell script picks the files in "input" folder and procesess it. The shell script blue.sh has this code. export... (16 Replies)
Discussion started by: hifake
16 Replies
Login or Register to Ask a Question