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Do While Loop Command help

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# 8  
Old 02-08-2013
Code:
( while true ; do date; netstat -antp | grep 1424 | grep -v "runmqlsr"| wc - l  ; sleep 1 ; done >> test.out ) &

PS: Please put CODE tags around your code. This facilitates copy & paste.

---------- Post updated at 08:47 PM ---------- Previous update was at 08:31 PM ----------

While thinking twice, I noted that '>' (without quotes) would be enough for re-directing the output. '>>' is not really needed.
# 9  
Old 02-08-2013
I just executed below command and am not able to stop it.

can you please help me in how to stop it? ctrl+c is not working and i don't know how to find the PID for this process to kill it.


can you please let me know?

---------- Post updated at 08:58 PM ---------- Previous update was at 08:58 PM ----------

forgot to post the command:

Code:
while true ; do date; netstat -antp | grep 1424 | grep -v "runmqlsr"| wc - l  ; sleep 1; done & > test.out 2>&1&

Last edited by Scrutinizer; 02-09-2013 at 01:15 AM.. Reason: code tags
# 10  
Old 02-08-2013
Try:
Code:
kill %%

# 11  
Old 02-14-2013
Oracle
Quote:
Originally Posted by skrv
its writing to a file but how can i make it run in the background? and not stop when i do ctrl+c on a shell?
try this:

nohup scriptname.sh > filename &


it will run the script in the background and save the output in file "filename". Even if the terminal gets disconnected by any mean the script will not get terminated and will keep running in the background.


Cheers...Smilie
Manu
# 12  
Old 02-14-2013
I see no value in jamming this into a one-liner.

Also, if you're doing grep | grep | grep, save some trouble and put it into an awk. It can replace two greps and the wc -l.

Code:
#!/bin/sh

(       while true
        do
                date
                netstat -antp | awk '/1424/ && !/runmqlsr/ { C++ } END { print C}'
                sleep 1
        done ) </dev/null 2>/dev/null >>test.out & disown

If your shell doesn't have disown, it will work without it.
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