in reply to File Input and Output

running this code: open(FILE, "data.txt"); #opens data.txt in read-mode while(<FILE>){ #reads line by line from FILE which is the filehandle for data.txt chomp; print "Saw $_ in data.txt\n"; #shows you what we have read } close FILE; #close the file. results in: # perl test1 syntax error at test1 line 5, near "<" syntax error at test1 line 5, near ">" Execution of test1 aborted due to compilation errors.

Replies are listed 'Best First'.
RE: RE: File Input and Output
by turnstep (Parson) on May 03, 2000 at 06:07 UTC
    root just forgot that you don't need to escape less-than and greater-than signs inside <CODE> tags. Obviously, it should read: 
    while(<FILE>)

    [download]
[reply]
[d/l]
      So, in summary, here's how you deal with open(): 

      #!/usr/bin/perl
print"Gimmie a filename to examine: ";
$filename=<STDIN>;

open(FILE,$filename);
while(<FILE>)
        {
        chomp;
        print "Found $_ in $filename"
        }
close FILEDESC;

      [download]
[reply]
[d/l]
[select]
        Actually, it should be: 
        
print "Gimme a filename to examine: ";
chop($filename=<STDIN>); ## Not many filenames have a newline...

open(FILE, $filename) || die "Could not open $filename: $!\n";
while(<FILE>) {
  chomp;
  print "Found $_ in $filename\n" ## Need a newline here!
}
close(FILE); ## not FILEDESC...

        [download]
[reply]
[d/l]

In Section Tutorials