i'm a newbie too, but try this-
use slashes instead of backslashes, perl sees backslashes as escapes, so this:
open(GRADES, "c:\perl\eg\grades.txt") or die "Can't open grades: $!\n";
should be:
open(GRADES, "c:/perl/eg/grades.txt") or die "Can't open grades: $!\n";
lemme know if that helps!
Customer Service wrote:
> O enlightened ones, here is my question:
> I am going through the llama book (which, by the way, is the most useful
> tool
> I have bought so far for perl reference) in order to learn perl. On page 10
> is a simple script which I copied and have attempted to execute for the last
> 1/2 hour. Please tell me what is wrong!
> I'm using ActiveStatePerl5.6.1 and Apache web server on M$ win98se.
>
> ##############perl script file name: gradation.pl ##################
> #!c:/perl/bin/perl -w
>
> open(GRADES, "c:\perl\eg\grades.txt") or die "Can't open grades: $!\n";
> while ($line = <GRADES>) {
> ($student, $grade) = split(" ", $line);
> $grades{$student} .= $grade . " ";
> }
>
> foreach $student (sort keys %grades) {
> $scores = 0;
> $total = 0;
> @grades = split(" ", $grades{$student});
> foreach $grades (@grades) {
> $total += $grade;
> $scores++;
> }
> $average = $total / $scores;
> print "$student: $grades{$student}\tAverage: $average\n";
> }
>
> ##### my text file is as follows, and is called "grades.txt" in same path as
> gradation.pl
>
> Noel 25
> Ben 76
> Clementine 49
> Norm 66
> Chris 92
> Doug 42
> Carol 25
> Ben 12
> Clementine 0
> Norm 66
> ...
>
> # Resulting error messages
>
> Unrecognized escape \p passed through at c:\perl\eg\gradation.pl Line 3
> Unrecognized escape \g passed through at c:\perl\eg\gradation.pl Line 3
> Can't open grades: No such file or directory
> ######### That's it #########
>
> Thanks for any help.
> Standing by with a water hose,
> Nathan
