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#1
03-04-2007
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Question for SEDers
Hi Seders,
Given these lines in a file, say file.txt: . . . <tag: ptype>CC<tag: ptype> ( line a ) <tag: pdescr>International<tag: pdescr> ( line b ) <tag: pnum> <tag: pnum> ( line c ) . . . I'd like to change the third line or line c to " <tag:XXXX> <tag:XXXX> " if and only if: line a contains the word CC between the tags "<tag: ptype>" there is a space character between the tags "<tag: pnum>" in line c. Do you know how can i implement this using SED??? (or any other method) Thanks marlonus999 Last edited by marlonus999; 03-05-2007 at 12:03 AM. 
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#2
03-04-2007
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This is part of an XML file... I'm doing it on korn shell. thanks
Last edited by marlonus999; 03-05-2007 at 12:04 AM.
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#3
03-05-2007
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Code:
awk '{ if( $0 ~ "^<tagpnum" ) { if ( $0 ~ ">CC<" ) { print "<tag:XXXX> <tag:XXXX>" } else { print } } else { print } }' file
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#4
03-05-2007
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Thanks,.. but i think this tests only line c (third line). I need to test the first line if it has a "CC" word on it..if it does...then i'll change the third line.
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#5
03-05-2007
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Code:
awk 'BEGIN{set=0} { if( $0 ~ "^<tagptype" ) { if ( $0 ~ ">CC<" ) { set=1; print } } else { if ($0 ~ "<tagpnum" ) { print "<tag:XXXX> <tag:XXXX>" } else { print } } }' file
Can be optimized ! 
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#6
03-05-2007
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That was great! It worked! Thanks matrixmadhan!
I am just wondering..anyone know a sed version of this??? Please post it, i'll greatly appreciate it
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#7
03-05-2007
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Quote:
Am afraid! That you didnt check the negative case,Just now tested that and felt ashamed  Here is the proper code for both the cases Code:
awk 'BEGIN{set=0} { if( $0 ~ "^<tagptype" && $0 ~ ">CC<" ) { set=1; print } else { if ($0 ~ "<tagpnum" && set == 1 ) { print "<tag:XXXX> <tag:XXXX>" } else { print } } }' file
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