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Problem with bash shell script program

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# 1  
Old 08-08-2011
Problem with bash shell script program
Hi,

This is my program.
Code:
#!/bin/bash
today=`date +"%b-%d-%Y"`
SERVICE="pbxconnect.php"
if [ ps ax | grep -v grep | grep $SERVICE ]; then
  echo "pbx program is running"
else
  nohup php pbxconnect.php > logpbx-$today.txt &
fi

On executing using "sh myprogram.sh" , i get the following error.
Code:
myprogram.sh: line 4: [: missing `]'

My path to bash is fine since i get "/bin/bash" when i did whereis bash.

Please help me out what is wrong with this progam.

Regards,
Suresh.
Last edited by Scott; 08-08-2011 at 07:18 AM.. Reason: Added code tags
# 2  
Old 08-08-2011
Moderator's Comments:
Mod Comment
Please use code tags when posting data and code samples! You also got a PM with a guide.


The commands will not be executed since either backticks ´ or dollar and brackets $(...) are missing, as well as surrounding double quotation marks "":
Code:
if [ "$(ps ax | grep -v grep | grep $SERVICE)" ]; then

# 3  
Old 08-08-2011
Oh and another one: You don't have to call it with
Code:
sh myprogram.sh

since you are already in a shell and ask to spawn a bash. Leave the sh out, just use ./myprogram.sh.
# 4  
Old 08-08-2011
It is working, thanks a lot
Hi zaxxon,

Thanks a lot. I was wondering for hours what is wrong with the program.

It is working fine.

Regards,
Suresh.
# 5  
Old 08-08-2011
Hi Zaxxon,

You can modify this line and try it works fine.

In the if loop whatever the grep pattern you are using it should within `(backticks) which is an intepreter for command execution otherwise it doesn't do command execution
Code:
if [ "`ps ax | grep -v grep | grep $SERVICE`" ]; then

Last edited by Scott; 08-08-2011 at 07:19 AM.. Reason: Code tags
# 6  
Old 08-08-2011
One more help
Hi zaxxon,

I need one more help. I want the progam "myprogram.sh" to run every one minute to check the php program is running or not. I set the cron like this:
Code:
*/1 * * * * /var/www/html/callreport/myprogram.sh

But the cron is not working, but if i run it manually it is working fine. I think it is to do with adding path to bash shell, but i don't know how to add the path in the cron.

Regards,
Suresh.
Last edited by Scott; 08-08-2011 at 07:19 AM.. Reason: Code tags
# 7  
Old 08-08-2011
Hi,

You can try to edit in crontab ( adding path to the crontab)

Code:

Example--->
Code:
crontab -e
*/1 * * * * /home/rsankar/Ravi/scripting/test.sh

Save--> :wq!
Code:
crontab: installing new crontab
 
crontab -l
*/1 * * * * /home/rsankar/Ravi/scripting/test.sh

Once it is scheduled you will get a mail like this "You have new mail in /var/spool/mail/rsankar".
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