To debug a perl program, invoke the perl debugger using “perl -d” as shown below.
# perl -d ./perl_debugger.pl
To understand the perl debugger commands in detail, let us create the following sample perl program (perl_debugger.pl).
$ cat perl_debugger.pl
#!/usr/bin/perl -w
# Script to list out the filenames (in the pwd) that contains specific pattern.
#Enabling slurp mode
...
