Redirection through AWK

raj_deep2k1 · 01-20-2006, 11:17 PM

Hi All,
I am facing a problem in redirecting the output of a shell script.
File is as below
----------------------------------------------------
#manage.sh
clear
tail -F /var/log/squid/access.log | awk '{print $3 "\t" $7 >>
output.txt }'
-------------------------------------------

so it not working,no texts going to output.txt,why?
I want to store output of the access.log into output.txt...
Please help

-Rajendra

card-suse · 01-21-2006, 12:22 AM

I think your redirect to output.txt is in the wrong place. Try:

tail -F /var/log/squid/access.log | awk '{print $3 "\t" $7}' >> output.txt

raj_deep2k1 · 01-21-2006, 01:26 AM

Quote:

Originally Posted by card-suse

I think your redirect to output.txt is in the wrong place. Try:

tail -F /var/log/squid/access.log | awk '{print $3 "\t" $7}' >> output.txt

Thanks a lot ,it is working sometimes and sometimes not...why?

-Rajendra Shakyawal

card-suse · 01-21-2006, 08:11 AM

When you say it's not working I'm assuming that you sometimes don't have output appended to output.txt. For now, the only reason I can think of is simply that awk is not finding a column 3 or 7 in the last 10 lines of access.log. You probably know that tail will only output the last 10 lines by default unless you use the -n flag and specify more. Could this be the case?