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Top Forums Shell Programming and Scripting Need help splitting huge single record file Post 302578855 by leolson on Friday 2nd of December 2011 02:30:21 PM
Old 12-02-2011
Question Need help splitting huge single record file

I was given a data file that I need to split into multiple lines/records based on a key word. The problem is that it is 2.5GB or bigger and everything I try in perl or sed causes a Segmentation fault. Can someone give me some other ideas.

The data is of the form:
Code:
RANDOMDATA*end*RANDOMDATA*end*RANDOMDATA*end*RANDOMDATA*end*



with no LF's to break it up.
I have tried things such as:
Code:
sed "s/\*end\*/\n/g" test1.text > test2.txt
cat test1.text | sed "s/\*end\*/\n/g" > test2.txt
perl -p -e "s/\*end\*/\n/g" test1.text > test2.txt


which all fail with:
Code:
Segmentation fault



Any ideas?

Thanks in advance!

Last edited by radoulov; 12-02-2011 at 04:41 PM.. Reason: Code tags!
 

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merge_fonts(3alleg4)						  Allegro manual					      merge_fonts(3alleg4)

NAME
merge_fonts - Merges two fonts into one font. Allegro game programming library. SYNOPSIS
#include <allegro.h> FONT *merge_fonts(FONT *f1, FONT *f2) DESCRIPTION
This function merges the character ranges from two fonts and returns a new font containing all characters in the old fonts. In general, you cannot merge fonts of different types (eg, TrueType fonts and bitmapped fonts), but as a special case, this function can promote a mono- chrome bitmapped font to a color font and merge those. Example: FONT *myfont; FONT *myfancy_font; FONT *lower_range; FONT *upper_range; FONT *capitals; FONT *combined_font; FONT *tempfont; ... /* Create a font that contains the capitals from */ /* the fancy font but other characters from myfont */ lower_range = extract_font_range(myfont, -1, 'A'-1); upper_range = extract_font_range(myfont, 'Z'+1, -1); capitals = extract_font_range(myfancy_font, 'A', 'Z'); tempfont = merge_fonts(lower_range, capitals); combined_font = merge_fonts(tempfont, upper_range); /* Clean up temporary fonts */ destroy_font(lower_range); destroy_font(upper_range); destroy_font(capitals); destroy_font(tempfont); RETURN VALUE
Returns a pointer to the new font or NULL on error. Remember that you are responsible for destroying the font when you are finished with it to avoid memory leaks. SEE ALSO
extract_font_range(3alleg4), is_trans_font(3alleg4), is_color_font(3alleg4), is_mono_font(3alleg4), exfont(3alleg4) Allegro version 4.4.2 merge_fonts(3alleg4)
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