convert Hexadecimal file to decimal

yairt,

check out the man pages for the "od" (Octal Dump) standard UNIX utility.  In addition to octal, it can do Hex, etc.

Let me know if you have any problems, and I'll give you more info like switches, etc.

Adjusted points from 100 to 101

As I understood the od/xd its convert each char including spaces and every digit by it self.
I need to convert a Hex NUMBER (few digits) to Dec.

As I understood the od/xd its convert each char including spaces and every digit by it self.
I need to convert a Hex NUMBER (few digits) to Dec.

Use this:
perl -ne '$_=hex($_);printf("%c\n",$_);' < hexfile.txt

mapc, its not working.

ah.. you wanted DECIMAL value.
use printf("%d") and not %c then.
And won't you tell us what is happening.
are you from Israel?

mapc, its not working.

Adjusted points from 101 to 103

I gut a lot of "0"s
Its still not good.

Yes I am from Israel

I gut a lot of "0"s
Its still not good.

Yes I am from Israel

Try the following, it will handle cases with leading or trailing spaces, and the presence of a leading 0x or 0X. Save it to a file (to-dec), make the file executable (chmod +x to-dec) and use it like "to-dec <hex-file >decimal-file"

#!/usr/bin/perl
#
while(<STDIN>)
{
  $_ =~ s/\s+//g;
  $_ =~ s/^0[xX]//;
  $dec = hex;
  print "$dec\n";
}

Can you show us what the file looks like?

you must explain haw long the hexa word you want to convert in decimal

od permit only conversion of byte

more efficient should be a compiled C program

Try the following C program. Let the file name be the first argument to the program.

/***********************************************/
#include <stdio.h>

int main(int argc, char **argv)
{
        int h;
        FILE *fp = fopen(argv[1],"r");

        while(!feof(fp))
        {
                fscanf(fp,"%x", &h);
                printf("\n %d \n",h);
        }
        return 0;
}  
/**************************************************/

perl -pe '/../ && ($_=hex()."\n")'

thanks

So what makes the accepted answer different from the other ones?