Can't find \x0D

thornton102 has asked for the wisdom of the Perl Monks concerning the following question:

Replies are listed 'Best First'.
Re: Can't find \x0D by ikegami (Patriarch) on Feb 07, 2011 at 16:29 UTC
By default, Perl converts \x0D\x0A to \x0A on read, and \x0A to \x0D\x0A on write on Windows. Use `binmode($fh)` to work with "binary" data.	[reply]
Re^2: Can't find \x0D by thornton102 (Novice) on Feb 07, 2011 at 16:42 UTC
My apologies...this is on an AIX machine. I'm also using binmode. In fact, this is the entire program (just in case I leave any other important facts out! :) ): #!/usr/bin/perl use strict; my $inFile = "TST5.NDM.SB.IOWSFLAT.STMTS.MRDF.TEST"; my $outFile = "$inFile.out"; my $buff; open(INFP, $inFile); open(OUTFP, ">$outFile"); binmode(INFP); binmode(OUTFP); my $cnt = 1; my $matchCnt = 0; while (read(INFP, $buff, 128)) { print OUTFP $buff; my $target = "\x0D"; if ($buff =~ /$target/) { print $buff; print "\n found \$target on 'line' $cnt, "; print "'" . ord($&) . "', '\x$&'\n"; ++$matchCnt; } ++$cnt; } print "found target $matchCnt times\n"; close (INFP); close (OUTFP);	[reply]
Re^3: Can't find \x0D by ikegami (Patriarch) on Feb 07, 2011 at 17:26 UTC
Either you looked at the file using UltraEdit or you're running on AIX. Both aren't possible since UltraEdit doesn't run on AIX. Did you perhaps FTP the file between the two systems using ASC mode?	[reply]
Re: Can't find \x0D by Anonymous Monk on Feb 07, 2011 at 16:58 UTC
UltraEdit is probably molesting the file :) `od -tacx 1 file` or `hexdump file`	[reply]
Re^2: Can't find \x0D by Jim (Curate) on Feb 07, 2011 at 17:07 UTC
The correct URL of the Wikipedia article about the Unix od ("octal dump") utility is http://en.wikipedia.org/wiki/Od_(Unix).	[reply]
Re^3: Can't find \x0D by Anonymous Monk on Feb 07, 2011 at 20:37 UTC
You're a friar Jim, moderate, consider that node.	[reply]
Re^2: Can't find \x0D by thornton102 (Novice) on Feb 07, 2011 at 17:10 UTC
Oh good lord you're right. I brought it up on the AIX machine using editbin and sure enough, it found \x0A but \x0D isn't there. Well, there's a 1/2 day I'll never get back! Thanks for everyone's help. I know better next time!	[reply]
Re: Can't find \x0D by mvaline (Friar) on Feb 07, 2011 at 17:09 UTC
Because you're working in binary mode, I would start by confirming the encoding of your file. In particular, if it is a Unicode representation, check whether it is a 8-bit or 16-bit encoding and byte-order.	[reply]