print out lines with a crtain number at a certain position 3

[jdespres]

I would like search my log files for certain variables that occur in the same location on each line....

Once the variable (numer) is found then print the line out

 

[Ghodmode]

The following will echo the characters that occur between position 10 and 15 of each line of the file logfile.log :

cat logfile.log | while read LINE
do
    echo $LINE | cut -c 10-15
done

You just need to put a conditional statement in there to catch the specific value or variable you're looking for.

--
-- Ghodmode

 

[PHV]

Why not simply this ?
cut -c 10-15 logfile.log

Hope This Helps, PH.
Want to get great answers to your Tek-Tips questions? Have a look at FAQ219-2884 or FAQ181-2886

 

[Ghodmode]

heheh ... well ya... if you want to do things the easy way ... ...
but there's still something missing because jdespres didn't provide us with enough information. He needs a loop anyway. He doesn't want every line printed out, as in my solution, just the one that contains the value he's looking for.

PHVs way is still better, though :

NUMBER=[i]<some number I'm looking for>[/i]
cut -c 10-15 logfile.log | while read VALUE
do
    if [ $VALUE -eq $NUMBER ]
    then
        echo $VALUE
    fi
done

--
-- Ghodmode

 

[jdespres]

The lines I want to print out will have either a 8 or a 16 in the 4th column... Space delimited....

Here's what I have so far: {I took Ghodmode's info}

#!/bin/ksh

# Scan through db error logs

NUMBER=$1
cut -d' ' -f4 $2 | while read VALUE
do
if [ $VALUE -eq $NUMBER ]
then
echo $VALUE
fi
done

And I get the following output:

$ ./check_errors.sh 16 /nbu2/openv/netbackup/db/error/log_1144123200
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16

Still isn't there.... Atleast I'm firther ahead!

Thanks for the help!

 

[PHV]

#!/bin/ksh
awk '$4=='$1 $2

Hope This Helps, PH.
Want to get great answers to your Tek-Tips questions? Have a look at FAQ219-2884 or FAQ181-2886

 

[RodKnowlton]

perl -ane 'print if $F[3] =~ /^(16|8)$/'

will also work.


Rod Knowlton

IBM Certified Advanced Technical Expert pSeries and AIX 5L
CompTIA Linux+
CompTIA Security+

 

[jdespres]

Hey PHV.... your last one worked!
.
Can you make a one liner out of it?

Thanks again!

 

[PHV]

Can you make a one liner out of it?
???
It's already a one liner !

Hope This Helps, PH.
Want to get great answers to your Tek-Tips questions? Have a look at FAQ219-2884 or FAQ181-2886

 

[stefanwagner]

egrep "^([^ ]* ){3}(8|16)" logfile.log

seeking a job as java-programmer in Berlin:

http://home.arcor.de/hirnstrom/bewerbung

 

[jdespres]

That last one didn't seem to work.....