check line in a file

fongthai · #1 (**permalink**) 11-25-2006

Hi all,

How do we check in a file whether a line started with KEYWORD2 is right after the line started with KEYWORD1

for example, this file content:

Abcdef gsh iasdi
94945 9085095 lksdjlkj
KEYWORD1 skljfi slakjfoi ' opiport sdfl
KEYWORD2 ksjflsk jfasope
jkdfsk393 89374982 23

Please help me!
Thanks

ranj@chn · #2 (**permalink**) 11-25-2006

Code:

awk '/KEYWORD1/ {getline; if($1 == "KEYWORD2") print "Success at line no ", NR}' filename

fongthai · #3 (**permalink**) 11-25-2006

It so great!
Thank you, ranj@chn!

ask.jackal · #4 (**permalink**) 11-25-2006

awk '/KEYWORD2/ { if ( prev !~ /KEYWORD1/ ) {print "Error at " NR}} {prev = $0 }' <sample.txt

John Arackal

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