Tagged Questions
2
votes
2answers
86 views
Tail -f piped through grep not outputing to file, but outputs to console
I'm using the following command
tail -f /mydir/myfile | grep "searchterm" >> outfile
Without the -f it works fine, but with the -f, which I need, nothing is written to the file. The ...
1
vote
2answers
139 views
How to use tail -f with grep to show surrounding lines
I would like to see the output in a logfile greped by only one domain but also the following two lines.
Example:
tail -f /var/log/apache2/modsec_audit.log |grep mydomain.de
this shows all lines, ...
14
votes
3answers
885 views
Piping from grep to awk not working
I am trying to grep the ongoing tail of file log and get the nth word from a line. Example file:
$ cat > test.txt <<EOL
Beam goes blah
John goes hey
Beam goes what?
John goes forget it
Beam ...
1
vote
2answers
387 views
Is there any other way to use tail -f for grep -q && operation?
I found this solution:
http://stackoverflow.com/questions/7178888/grep-q-not-exiting-with-tail-f
but is there any other possible?
UPD: I want to do tail -f | grep -q something && echo ...
2
votes
2answers
1k views
Add carriage return to output of `tail` while using `grep`
I'm looking to refactor the following command:
tail -f production.log |
grep -e "Processing " -e "compatible;" -e "Completed in " -e
This is the output of the command:
Processing ...
10
votes
7answers
6k views
grep and tail -f?
Is it possible to do a tail -f (or similar) on a file, and grep it at the same time? I wouldn't mind other commands just looking for that kind of behavior.
