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Top Forums Shell Programming and Scripting increase/decrease multiple numbers in a filename. Post 302642609 by Ravenholdt on Thursday 17th of May 2012 05:51:08 PM
Old 05-17-2012
increase/decrease multiple numbers in a filename.

I got a game that output map tiles of the session with the 0,0 position at the place you login/spawn.
That makes making a map somewhat troublesome since the 0,0 will move.

So I've been looking for a way to change the numbers in the filenames of all files in a folder by a certain value.

The tiles are named "tile_X_Y.png".

I tried to use awk to get the X and Y numbers out, add the values to them and then rename the file, but are not quite sure how to manage that.

I'm not really sure how to use one awk's output as another awk's input

I have edited the code since posted.
Code:
#! /bin/sh  
v1c=5 
echo $v1c 
v2c=-5 
echo $v2c 
cd ./tiles 
for tile in * 
do 
echo "start" 
n_tile=`(awk -F '.' '{print $1}')` //Will remove .png
echo "1" 
v1=`echo $n_tile | awk -F '_' '{print $2}'` //Will take the X
echo "2" 
v2=`echo $n_tile | awk -F '_' '{print $3}'` //Will take the Y
echo "3"  
move="tile_"+$v1+v1c+"_"+v2+v2c+".png" 
echo $move  
mv $tile $move 
done

It feels like there must be a way that's more effective than this script, and I don't really know how to get this script to work. Smilie

Thanks in advance.

Last edited by Ravenholdt; 05-17-2012 at 07:46 PM..
 

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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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