Hi Brad, This is interesting. Thanks for delving deeper into this.
I'd prefer that my high level scripting language didn't make me think about this type of thing... but I guess that's not being realistic. ;-) -- Michael Sent from my iPad On Mar 17, 2012, at 6:17 PM, "Brad Baxter" <b...@mail.libs.uga.edu> wrote: > On Sat, Mar 17, 2012 at 5:25 PM, Doran, Michael D <do...@uta.edu> wrote: >> It looks like the read pointer was going to the beginning of the file on >> Solaris, but the end of the file on Linux. I've edited the script to do >> separate opens for when I need to read the file and when I need to append to >> it. I'm running the script now to check for any unintended consequences. >> >> My take-away on this, is to avoid the use of "+>>" to open a file. In fact, >> in doing further research I saw that exact advice in the Perl Cookbook, and >> for just this reason. >> >> Thanks to Brad Baxter for (pardon the pun) pointing me in the right >> direction. >> >> -- Michael > > FWIW, the Perl version seems to make a difference, too ... > >>> cat qt > #!/usr/local/bin/perl > > use strict; > use warnings; > > system 'echo "This is a test" > test'; > > open my $fh, '+>>', "test" or die $!; > print '[',<$fh>,']'; > close $fh; > >>> ./qt > [This is a test > ] > >>> /usr/local/bin/perl -v > > This is perl, v5.8.8 built for sun4-solaris > >>> cat qt > #!/usr/local/bin/perl > > use strict; > use warnings; > > system 'echo "This is a test" > test'; > > open my $fh, '+>>', "test" or die $!; > print '[',<$fh>,']'; > close $fh; > >>> ./qt > [] > >>> /usr/local/bin/perl -v > > This is perl 5, version 12, subversion 1 (v5.12.1) built for sun4-solaris
