“End of script output before headers” error in Apache
Apache on Windows gives me the following error when I try to access my Perl script: this is my sample script but not working on browser
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Porting Perl to Python
Keep a phrasebook handy as you go through the code you want to port.
How to fix a locale setting warning from Perl
Your OS doesn’t know about en_US.UTF-8. You didn’t mention a specific platform, but I can reproduce your problem: % uname -a OSF1 hunter2 V5.1 2650 alpha % perl -e exit perl: warning: Setting locale failed. perl: warning: Please check that your locale settings: LC_ALL = (unset), LANG = “en_US.UTF-8” are supported and installed on your … Read more
How can I sort a Perl hash on values and order the keys correspondingly (in two arrays maybe)?
First sort the keys by the associated value. Then get the values (e.g. by using a hash slice). Or if you have a hash reference.
How do I completely mirror a web page?
If your just looking to run a command and get a copy of a web site, use the tools that others have suggested, such as wget, curl, or some of the GUI tools. I use my own personal tool that I call webreaper (that’s not the Windows WebReaper though. There are a few Perl programs … Read more
Global symbol requires explicit package name
Have a look at perldiag: Global symbol “%s” requires explicit package name (F) You’ve said “use strict” or “use strict vars”, which indicates that all variables must either be lexically scoped (using “my” or “state”), declared beforehand using “our”, or explicitly qualified to say which package the global variable is in (using “::”).
How do I use the MOSS script?
Seems one should be registered to use it, instructions weren’t clear on the site. I received the email finally with userid and ran the script, this time it worked.
Do I need to include #!/usr/bin/perl line in Perl script on Windows?
If you want the script to be portable to UNIX and Cygwin, keep the shebang line. Even on Windows where the OS doesn’t use it to determine how to run the file, Perl will still parse switches written there, such as which turns warnings on by default (like use warnings; but global).
What does “if (1)” do?
Technically, the if (1) does nothing interesting, since it’s an always-executed if-statement. One common use of an if (1) though is to wrap code you’d like to be able to quickly disable, say for debugging purposes. You can quickly change an if (1) to if (0) to disable the code.
How to decrypt hash stored by bcrypt
You’re HASHING, not ENCRYPTING! What’s the difference? The difference is that hashing is a one way function, where encryption is a two-way function. So, how do you ascertain that the password is right? Therefore, when a user submits a password, you don’t decrypt your stored hash, instead you perform the same bcrypt operation on the user input and compare … Read more