Programmers do not know how to debug is blind. Perl comes with a built-in debugger that allows you to do debugging without separately install a debugger.
To debug a Perl script, simply use "-d" flag:
Here are the common use commands:
- s - Single step. It will step into a subroutine.
- n - Next, steps over subroutines.
- r - Return from the subroutine.
- c - Continue until a breakpoint if any.
- b [ln|event|sub] - Set a breakpoint.
- l [line|sub] - List source code.
- p expr - Print expression.
- q - Quit.
For details, visit
http://perldoc.perl.org/perldebug.html. Cheers!
No comments:
Post a Comment