LinuxQuestions.org - [SOLVED] insert a character in line using sed/awk

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sunilsagar

07-25-2011 11:00 PM

insert a character in line using sed/awk

Hello !

I have a string as below

LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined

Want the above string to be modified as

LogFormat "%h %l %u %D %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined

inserting %D after %u in the string

Please suggest.

crts	07-26-2011 01:14 AM

Code:

sed 's/%u/& %D/'

A.Thyssen

07-26-2011 01:28 AM

sed -i '/^LogFormat/s/%u/& %D/' file

You can use perl in-line editing too in a similar way.

sunilsagar

07-26-2011 01:44 AM

thanks it worked.

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