Print 4th line back from regexp Post: 302876430

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print the line immediately after a regexp; but regexp is a sentence

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Hi all, This should be very easy but I can't figure it out... I have a file that looks like this: @SRR057408.1 FW8Y5CK02R652T length=34 AGCAGTGGTATCAACGCAGAGTAAGCAGTGGTAT +SRR057408.1 FW8Y5CK02R652T length=34 FIIHFF6666?=:88@@@BBD:::?@ABBAAA>8 @SRR057408.2 FW8Y5CK02TBMHV length=52...

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LEARN ABOUT OSX

base64

base64(1)						    BSD General Commands Manual 						 base64(1)

NAME

     base64 -- Encode and decode using Base64 representation

SYNOPSIS

     base64 [-d | -h | -v | -D] [-b count] [-i input_file] [-o output_file]

DESCRIPTION

     base64 encodes and decodes Base64 data, as specified in RFC 4648. With no options, base64 reads raw data from stdin and writes encoded data
     as a continuous block to stdout.

OPTIONS

     The following options are available:
     -b count
     --break=count	  Insert line breaks every count characters. Default is 0, which generates an unbroken stream.

     -d
     --debug		  Print verbose log messages during processing.

     -D
     --decode		  Decode incoming Base64 stream into binary data.

     -h
     --help		  Print usage summary and exit.

     -i input_file
     --input=input_file   Read input from input_file.  Default is stdin; passing - also represents stdin.

     -o output_file
     --output=output_file
			  Write output to output_file.	Default is stdout; passing - also represents stdout.

     -v
     --version		  Print build version and exit.

SEE ALSO

     openssl(1), wikipedia page <http://en.wikipedia.org/wiki/Base64>, RFC 4648 <http://tools.ietf.org/html/rfc4648>

Mac OS X 10.7							 February 8, 2011						     Mac OS X 10.7

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

regexp to print after a field seperator

Discussion started by: ramky79

2. UNIX for Dummies Questions & Answers

print the line immediately after a regexp; but regexp is a sentence

Discussion started by: ownins

3. Shell Programming and Scripting

print 2 lines above regexp

Discussion started by: snoman1

4. Shell Programming and Scripting

print lines AFTER lines cointaining a regexp (or print every first and fourth line)

Discussion started by: kmkocot