Shlomi Fish <shlo...@shlomifish.org> writes: > Hi Lee, > > thanks for replying to the list and for not top posting.
Yvw :) I hate top posting --- only in rare cases, I find it useful/reasonable. And posting the solution here might help others. >> >> #!/bin/perl >> > >> > Is your Perl at /bin? Shouldn't it be in /usr/bin? >> >> It's in /bin: >> >> ,---- >> | [~/src/perl/test] which perl >> | /bin/perl >> | [~/src/perl/test] >> `---- >> > > Ah, is this part of the /usrmove ? > http://fedoraproject.org/wiki/Features/UsrMove They're saying: "Provide a simple way of mounting almost the entire installed operating system read-only, atomically snapshot it, or share it between multiple hosts to save maintenance and space." I don't know, the installer of Fedora 17 forced me to put /usr onto the root partition, so I probably can't mount it ro. Fedora has its quirks ... >> >> our $fh; >> > >> > Why the our? >> >> I've been reading that you need to declare variables before using them >> when you use strict. A "my $fh;" would probably suffice. > > You can do the declaration during the open. Yes --- but I like it when the variables are declared in a "consistent" way like you do in C, rather than declaring them all over the place and/or even within other statements. I haven't figured out yet how I'll do this in perl. >> >> $ctx->addfile( $fh); >> > >> > You can also add a filename using "->addfile ()" >> >> The description on [1] says it needs a file handle? > > Well, https://metacpan.org/module/MSHELOR/Digest-SHA-5.84/lib/Digest/SHA.pm is > OK with giving a file. Hm indeed --- and it's working. That shows that using google to find info about perl can be very misleading. >> > Perhaps learn Perl properly using some of the resources here: >> >> Yes, I should start at the beginning and/or take a class. I got so far >> that I can do what is needed, with the exception of creating the hashs. >> So maybe I'll have to use an external program like shasum until I figure >> out how to use the Digest ... > > There are some reasons for why not to use external programs: > > http://perl-begin.org/tutorials/bad-elements/#calling-the-shell-too-much It's probably very inefficient, that's why I don't want to do it ... I'll have to read this page :) -- "Object-oriented programming languages aren't completely convinced that you should be allowed to do anything with functions." http://www.joelonsoftware.com/items/2006/08/01.html -- To unsubscribe, e-mail: beginners-unsubscr...@perl.org For additional commands, e-mail: beginners-h...@perl.org http://learn.perl.org/
