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Top Forums Shell Programming and Scripting Printing the lines that appear in an other file, and the three lines after them Post 302645373 by jbi on Wednesday 23rd of May 2012 09:41:18 AM
Old 05-23-2012
The first lines of my input are :
Code:
@SRR407306.1 GA2MACHINE1_1004:1:1:1139:9772 length=74      <-header
TCCCTAGCTTCTCTGGTGAGNTATNANNCAAGGTCCCTAANNNNNNNNNNTTAACACATGAANNNNNNNNNGTC
+SRR407306.1
EGGGDGGGDGGGGFGFEGDC#AAA#A##AB?B??GGGED=##########ACC@EEEEE>?#############
@SRR407306.2 GA2MACHINE1_1004:1:1:1139:5426 length=74      <-header
AATCTTGGCTCACTGCAACCNCCGNCNNCCTGGTTCAAGCNNNNNNNNNNCCTCAGCCTCCCNNNNNNNNNAGA
+SRR407306.2
F=FDEFEF:FFFFDFFB?B<#=>A#;##?=A@>7A?DDA6##########2A>=??ACCCB@############
@SRR407306.3 GA2MACHINE1_1004:1:1:1139:20595 length=74    <-header
TAGGAAGGCAGCTATGATGGNTCANGNNCAGGAAGGTGGGNNNNNNNNNNCAGCCTCCCTGANNNNNNNNNTCG

The file contains approximately 200 million lines.
I would also be glad if you could give me a bit of explanation on your code, so I can adapt it by myself if I need it.
Thanks
 

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get_midi_length(3alleg4)					  Allegro manual					  get_midi_length(3alleg4)

NAME
get_midi_length - Determines the total playing time of a midi, in seconds. Allegro game programming library. SYNOPSIS
#include <allegro.h> int get_midi_length(MIDI *midi); DESCRIPTION
This function will simulate playing the given MIDI, from start to end, to determine how long it takes to play. After calling this function, midi_pos will contain the negative number of beats, and midi_time the length of the midi, in seconds. Note that any currently playing midi is stopped when you call this function. Usually you would call it before play_midi, to get the length of the midi to be played, like in this example: length = get_midi_length(my_midi); play_midi(my_midi); do { pos = midi_time; textprintf_ex(screen, font, 0, 0, c, -1, "%d:%02d / %d:%02d ", pos / 60, pos % 60, length / 60, length % 60); rest(100); } while(pos <= length); RETURN VALUE
Returns the value of midi_time, the length of the midi. SEE ALSO
load_midi(3alleg4), midi_time(3alleg4), midi_pos(3alleg4), exmidi(3alleg4) Allegro version 4.4.2 get_midi_length(3alleg4)
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