When I create a new directory at the same level (~/learn/perl/oldp5p), then copy over all the contents from the original directory to the new one, then run the program from the new directory, the problem appears: 

$ cd ../oldp5p
$ cat abc.pl
print "hello world\n";
print "goodbye world\n";
$ perl abc.pl
hello world
goodbye world
$ perl -d abc.pl
hello world
goodbye world
Var=

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But when I wipeout the original directory, create a new directory with the same name, then copy over the test program to the new directory and run the debugger, the problem goes away. 
$ cd ..
$ rmtree1.pl p5p
$ mkdir p5p
$ cp -v oldp5p/abc.pl p5p
'oldp5p/abc.pl' -> 'p5p/abc.pl'
$ cd p5p
$ perl abc.pl
hello world
goodbye world
$ perl -d abc.pl

Loading DB routines from perl5db.pl version 1.49_04
Editor support available.

Enter h or 'h h' for help, or 'man perldebug' for more help.

main::(abc.pl:1):    print "hello world\n";
  DB<1> q

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So if seems as if something in the original directory is "polluting" the operation of the debugger.

Jim Keenan

In reply to Re^2: perl -d: puzzling behavior when run in program in current directory by jkeenan1
in thread perl -d: puzzling behavior when run in program in current directory by jkeenan1

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