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Top Forums UNIX for Dummies Questions & Answers Changing a special line and Byte in a random file Post 302906144 by frhling on Tuesday 17th of June 2014 01:34:04 PM
Old 06-17-2014
Changing a special line and Byte in a random file

Hello
I created 3 files by:
dd if=/dev/urandom bs=1024 count=1000000 of=./testfile1
dd if=/dev/urandom bs=1024 count=5000000 of=./testfile2
dd if=/dev/urandom bs=1024 count=10000000 of=./testfile3

Now I want to know how to make a change in a specific byte and/or line of theses files?

 

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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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