What are some effective error handling techniques in Perl?

What are some effective error handling techniques in Perl?

In Perl, you can use techniques like 'eval', 'die', and 'warn' for error handling. Would you like to know more about each?

Yes, please explain how 'eval' works for error handling.

'eval' allows you to catch errors in a block of code. If an error occurs, it returns undef, and you can check the error with '$@'.

What about using 'die' and 'warn'? How do they differ?

'die' terminates the program and prints an error message, while 'warn' just prints a message but allows the program to continue.

Can you give an example of using 'die' in a script?

Sure! Here's a simple example: open my $fh, '<', 'file.txt' or die "Can't open file: $!"; This will stop execution if the file can't be opened.