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UNIX Shell cut, grep, sed

Posted on 2011-09-30
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Last Modified: 2012-05-12
I have a line on field 6 that contains two Oracle errors.  I'd like to only cut the words "ORA-01653" and "ORA-12096"  How do I achieve it? (the Oracle errors can be different each time the job runs)  The line is pipe delimited.

Shedule Job,Daily Schedule Job|Data Load-IL|28-SEP-10|28-SEP-10|Failed|ORA-12096: error in view log on T_RATE_PLAN" ORA-01653: unable to extend table MLOG$_T_RATE_PLAN by 1024 in tablespace SYSTEM|
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Question by:scpig
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Expert Comment

by:user_n
ID: 36894230
regular expression

    A way of specifying and matching strings for shells (filename wildcarding), grep (file searches), sed, and awk.

http://compute.cnr.berkeley.edu/cgi-bin/man-cgi?regex+5
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Expert Comment

by:Gerwin Jansen, EE MVE
ID: 36894500
Hi scpig, by cutting I understand that you want to filter out the ORA messages. I'm assuming that your lines are in a file called test.txt

This is what you will do the trick::

cut -d"|" -f6 test.txt | grep -o "ORA-[0-9]*"

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First part will cut out field #6 with | as a field separator in your file test.txt. Second part will grep for the ORA error numbers and print them each on a new line.

The command above on your line above will produce this output:
ORA-12096
ORA-01653

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Author Comment

by:scpig
ID: 36894668
When I tried it, it gave me this error:
cut -d"|" -f6 test.txt | grep -o "ORA-[0-9]*"

grep: illegal option -- o
Usage: grep -hblcnsviw pattern file . . .

My machine is Linux.
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Expert Comment

by:Tintin
ID: 36894877
What Linux distro are you running?

It's very unusual that it would come with GNU grep.
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Accepted Solution

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Gerwin Jansen, EE MVE earned 250 total points
ID: 36895715
@Tintin - I'm using FC15 - GNU grep 2.8

You may try this awk version if you like:

cut -d"|" -f6 test.txt | awk -- '{for (i=1; i<=NF; i++) if ($i ~ /ORA-[0-9]*/) print $i}'

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Expert Comment

by:Gerwin Jansen, EE MVE
ID: 36896285
:) Saw in the result that there is a trailing colon (:) - this one has filtered that:

cut -d"|" -f6 test.txt | awk -- '{for (i=1; i<=NF; i++) if ($i ~ /ORA-[0-9]*/) { sub(/:$/,"",$i) ; print $i } }'

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Author Closing Comment

by:scpig
ID: 36903753
This works well on my machine.  Thanks!
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