cutting rows having particular pattern
i hav patterns lik this in my file......the content is same, but onkly the values changes.......
thus ter r numb. of lines having these 3 lines in the file
i wan to get all those lines starting with ANALYTICAL SURFACE AREAand three lines below it......this shud satisfy whereevr the lenes are or the patterns are.......
ANALYTICAL SURFACE AREA :
Comp. probe_radius, reent, toric, contact SES SAS
0 11.200 3257.369 883.533 170.910 4311.812 12591.084