Gurus: I have 310,000+ files that have some hex characters in them. I'd like to strip these out, and am trying to use Perl and the tr command. These hex codes are interspersed in the lines who-knows where. Plus some files are just fine.

Please help.

use strict; use warnings; # Declare package names my $work_file; my @files = <E:\\triggers\\1_MERGE_3326\\tests\\*.hl7>; #$work_file = pop; # If work_file comes from command line, uncomment my $inPath = "E:\\triggers\\1_MERGE_3326\\pass"; my $outPath = "E:\\triggers\\1_MERGE_3326\\converted"; foreach $work_file (@files) { open (WORK, "<$work_file") or die "Couldn't open $work_file."; # Open +the working file open (my $file, ">$outPath\\$work_file") or die "Couldn't open $work_f +ile."; # open an output file while (<WORK>) { chomp; $_ =~ tr/\000-\011\013\014\016-\037//d; print $file map {"$_\n"} ($_); } # end while close WORK; close $file; } # end foreac

I keep getting a "Couldn't open E:\triggers\1_MERGE_3326\tests\20131209_180245424_R01.hl7. at E:\triggers\1_MERGE_3326\remove_chars_dir.pl line 16.

This file is the very first file that appears in my directory listing. I'm also logged in with an account with administrative privileges, so it can't be a permissions issue.

Does a file have to exist before it can be opened? If so, how to create one?

forgive the noob questions, please


In reply to Removing non-printing (hex codes) from text files by moesplace

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.