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Homework and Emergencies Emergency UNIX and Linux Support awk cut column based on string Post 302598315 by ctsgnb on Tuesday 14th of February 2012 05:03:29 AM
Old 02-14-2012
Code:
awk -F"[ :-]" 'tolower($2)~/tag/{print "-"$2":"$3}' yourfile

or
Code:
awk '{split($1,a,":")}tolower(a[1])~/-tag/{print $1}' yourfile

or
Code:
awk '{NF=1;split($1,a,":")}tolower(a[1])~/-tag/' yourfile

Code:
$ cat tst
-tag:messages -P:/var/log/messages -P:/var/log/maillog -K:Error -K:Warning -K:critical
-TAG:messages -P:/var/log/messages -P:/var/log/maillog -K:Error -K:Warning -K:critical
-Tag:messages -P:/var/log/messages -P:/var/log/maillog -K:Error -K:Warning -K:critical
-tAG:messages -P:/var/log/messages -P:/var/log/maillog -K:Error -K:Warning -K:critical
$ awk -F"[ :-]" 'tolower($2)~/tag/{print "-"$2":"$3}' tst
-tag:messages
-TAG:messages
-Tag:messages
-tAG:messages
$ awk '{split($1,a,":")}tolower(a[1])~/-tag/{print $1}' tst
-tag:messages
-TAG:messages
-Tag:messages
-tAG:messages
$ awk '{NF=1;split($1,a,":")}tolower(a[1])~/-tag/' tst
-tag:messages
-TAG:messages
-Tag:messages
-tAG:messages


Last edited by ctsgnb; 02-14-2012 at 02:42 PM..
 

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