Help with tail /grep needed Post: 302117993

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tail, grep and cut

Hello all, I have some weird problem that kinda baffles me. Say I have the following test file: claudia:~/tmp$ cat testfile.txt This is a test line This is the second test line And yeah, this is the third test line Then say I want to tail the file, grep for the word "third" then...

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I'm trying to use tail/grep to monitor a log file. The command I cooked up is: tail -n 50 -f output.log | grep 'type:system' | cut -f 5- A sample line from the log file is: 1208894862 type:system session:0 severity:4 load started the columns are tab delimited. this works ok, except...

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The program that is running on my machine generates log files. I want to be able to know the number of lines that contain "FT" in the most recent log file. I wrote the following, but it always returns zero. And I know the count is not zero. Any ideas? ls -rt *.log | tail -n 1 | grep -c FT

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I need to tail -f a file so I can monitor it as it is being written to. However, there is a lot of garbage in the file that I don't care about. So normally I would just pipe and grep for the string that is important to me. However, in this case, there are two things I need to grep for. I can't...

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I have a basic tail/grep question. I have logs that are generated & kept in a directory called alert_audit. I am using "tail" to see the logs that are coming in, but I only need logs that contain the IP address 10.249.185. or 10.247.231. Here is the command I have, but it pulls all IP...

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Write to file using tail -f through a pipe to grep

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Hi I have a file which is updated very frequently. Where in i wanted to use tail -f command in the script and wanted to grep for a particular word. But the issue is when i use tail -f filename|grep "word" ... it will show me blank until the word is found in the real time. if it shows...

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Tail -f | grep > output.txt

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Good Morning, i ran into some trouble this morning while 'improving' my monitoring stuff. i would like to get a warning when the number of mails sent (outbound) by postfix is above a certain number. so far, so easy. to test that i simply put cat /var/log/mail.info | grep 'to=<' | grep -v -e...

LEARN ABOUT CENTOS

opimport

OPIMPORT(1)						      General Commands Manual						       OPIMPORT(1)

NAME

       opimport - converts sample database files

SYNOPSIS

       opimport [ options ] input_file

DESCRIPTION

       opimport converts sample database files from a foreign binary format (abi) to the native format.

OPTIONS

       --abi / -a
	      Input abi file description location.

       --force / -f
	      Force conversion even if the input and output abi are identical.

       --output / -o filename
	      Specify  the  output  filename. If the output file already exists it is not overwritten but data are accumulated in. Sample filename
	      are informative for post profile tools and must be kept identical, in other word the pathname from the first path component contain-
	      ing a '{' must be kept as it in the output filename.

       --help / -? / --usage
	      Show help message.

       --verbose / -V
	      Give verbose debugging output.

       --version / -v
	      Show version.

ENVIRONMENT

       No special environment variables are recognised by opimport

FILES

       /var/lib/oprofile/abi
	      The abi file description of the sample database files

VERSION

       This man page is current for oprofile-0.9.9.

SEE ALSO

       /usr/share/doc/oprofile/, oprofile(1)

4th Berkeley Distribution					 Tue 10 June 2014						       OPIMPORT(1)

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