You could try a variation of this:
use strict; open(OUTFILE,">parse.log"); open(INFILE,"myfile.txt"); while(<INFILE>){ if($_ =~ /^>/){ #If it starts with > $_ .= <INFILE>; #add the next line to $_ print OUTFILE $_; #and print it. } } -----Original Message----- From: Pedro A Reche Gallardo [mailto:[EMAIL PROTECTED]] Sent: Friday, April 19, 2002 12:30 PM To: [EMAIL PROTECTED] Subject: help parsing file HI, I have a file that it could be devided in set of lines, each set startingi with a line that has the ">" symbol. Of everyset of lines, I am trying to print only the line that contain the ">" symbol and the next line. Please see below. Any help welcome. Regards, Example file >sptrembl|Q22966|Q22966 HYPOTHETICAL 19.9 KDA PROTEIN. [Caenorhabditis elegans] MVLALITLVVSAFLIPEVLADPCGDSNWRYFPQTNSCYKLIDENLPWTIAEFKCLFQGAHHVSIDSPEENQFVHEL SRWS EIWTGAAFFGKDQHYVNSDGSRYGNFENWKDGRKPPMNRARRCIKMDGNGEWFQSCCKKKTFTICEKKAAYSASSY SGSN NSVNGFRFMRHRS >sptrembl|Q23409|Q23409 HYPOTHETICAL 137.8 KDA PROTEIN. [Caenorhabditis elegans] MIHDSLTTRSTLRTLNDAAPRVINDILYQHPKWISNYQLIEFNSTTHTLIVDSESGQDLVTGIFNLYDQNRNHAGY SCLG LNFYSTLLEAISHDNVQWGGMIYVFLYGQPAQDLDSYEKILQRIEVNKIQINVVQSSLNPCGQDISLDGLISLTQF SGGS FITATTPNAGNVFNQVPTNYMSNLIYENIAQDCTDTTFYVPIDVGTQSFTTYVQGFLNTDVQYTSPTDSLSTVTNV FNDL The output I would like will be: >sptrembl|Q22966|Q22966 HYPOTHETICAL 19.9 KDA PROTEIN. [Caenorhabditis elegans] MVLALITLVVSAFLIPEVLADPCGDSNWRYFPQTNSCYKLIDENLPWTIAEFKCLFQGAHHVSIDSPEENQFVHEL SRWS >sptrembl|Q23409|Q23409 HYPOTHETICAL 137.8 KDA PROTEIN. [Caenorhabditis elegans] MIHDSLTTRSTLRTLNDAAPRVINDILYQHPKWISNYQLIEFNSTTHTLIVDSESGQDLVTGIFNLYDQNRNHAGY SCLG ******************************************************************* PEDRO A. RECHE , pHD TL: 617 632 3824 Dana-Farber Cancer Institute, FX: 617 632 4569 Harvard Medical School, EM: [EMAIL PROTECTED] 44 Binney Street, D1510A, EM: [EMAIL PROTECTED] Boston, MA 02115 URL: http://www.reche.org ******************************************************************* -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]