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#1 (permalink)

03-10-2008

jkl_jkl

Registered User

Join Date: Aug 2007

Posts: 46

Pattern not found : AWK , help

Hi All,

My file :

Code:

$ cat my.txt
AA:22:note:AA
BB:AA:help:XX
CC:14:AA:CC
ZZ:AA:hello:AA

A) <searching "AA" as 2nd field in all lines of my.txt >
$ awk -F ":" '{ if ($2 ~ /AA/) print "found in line - " NR; else print "Not found"}' my.txt
Not found
found in line - 2
Not found
found in line - 4

B) <"XX" is not present as 2nd field in my.txt>
$ awk -F ":" '{ if ($2 ~ /XX/) print "found in line - " NR; else print "Not found"}' my.txt
Not found
Not found
Not found
Not found

How can I output this:

- A) output should be:

Code:

found in line - 2
found in line - 4

** I can do a
grep -v "Not found" in the awk output to remove the "Not found"(s), but I want to do it with awk without doing "pipe"

- B) output should be:

Code:

Not found

** i.e. a single "Not found" if pattern is not present as 2nd field in any of the lines.

HTH,
jkl_jkl

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