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Top Forums Shell Programming and Scripting How to count Unique Values from a file. Post 302487623 by Prega on Thursday 13th of January 2011 04:12:17 AM
Old 01-13-2011
How to count Unique Values from a file.

Hi

I have the following info in a file -
Code:
      <Cell id="25D"/>
      <Cell id="26A"/>
      <Cell id="26B"/>
      <Cell id="26C"/>
      <Cell id="27A"/>
      <Cell id="27B"/>
      <Cell id="27C"/>
      <Cell id="28A"/>

I would like to know how would you go about counting all unique values within this file.I have limited knowledge but I think I should follow
these steps - Search the file for the occurance of the word "cell Id" than obtain the value "25D" than go through a conditon to see if value is unique and add to counter and display count.

I dont know were to start.

Any help or explanation would highly appreciative

Regards


Moderator's Comments:
Mod Comment Please use code tags when posting data and code samples, thank you!

Last edited by Franklin52; 01-13-2011 at 05:17 AM..
 

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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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