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Full Discussion: shell script to mask
Top Forums Shell Programming and Scripting shell script to mask Post 302229261 by prassu on Tuesday 26th of August 2008 02:51:57 PM
Old 08-26-2008
shell script to mask

I have a file which has huge number of rows.

I have to mask only few rows at a particular position lets say 12th to 19th i have to replace with X's (XXXXXXX)

I am reading the file and even checking the conditions, but I am not sure how I can replace the text

my program

while read lines
do
b=`echo "$lines" | awk '{print substr($0,1,3)}'`
if [ "$b" = "0 " ]; then
?????????????????????
fi
done < maintest


maintest is my file

I dont want to create a temp file and place all the lines in it .


Please help
thanks

 

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load_dat_font(3alleg4)						  Allegro manual					    load_dat_font(3alleg4)

NAME
load_dat_font - Loads a FONT from an Allegro datafile. SYNOPSIS
#include <allegro.h> FONT *load_dat_font(const char *filename, RGB *pal, void *param) DESCRIPTION
Loads a FONT from an Allegro datafile. You can set param parameter to point to an array that holds two strings that identify the font and the palette in the datafile by name. The first string in this list is the name of the font. You can pass NULL here to just load the first font found in the datafile. The second string can be used to specify the name of the palette associated with the font. This is only returned if the pal parameter is not NULL. If you pass NULL for the name of the palette, the last palette found before the font was found is returned. You can also pass NULL for param, which is treated as if you had passed NULL for both strings separately. In this case, the function will simply load the first font it finds from the datafile and the palette that precedes it. For example, suppose you have a datafile named `fonts.dat' with the following contents: FONT FONT_1_DATA FONT FONT_2_DATA FONT FONT_3_DATA PAL FONT_1_PALETTE PAL FONT_2_PALETTE Then the following code will load FONT_1_DATA as a FONT and return FONT_1_PALETTE as the palette: FONT *f; PALETTE pal; char *names[] = { "FONT_1_DATA", "FONT_1_PALETTE" } f = load_dat_font("fonts.dat", pal, names); If instead you want to load the second font, FONT_2, from the datafile, you would use: FONT *f; PALETTE pal; char *names[] = { "FONT_2_DATA", "FONT_2_PALETTE" } f = load_dat_font("fonts.dat", pal, names); If you want to load the third font, but not bother with a palette, use: FONT *f; char *names[] = { "FONT_3_DATA", NULL } f = load_dat_font("fonts.dat", NULL, names); RETURN VALUE
Returns a pointer to the 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
register_font_file_type(3alleg4), load_font(3alleg4) Allegro version 4.4.2 load_dat_font(3alleg4)
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