P:\test>perl -wde1
perldb: Must not source insecure rcfile ./perldb.ini.
        You or the superuser must be the owner, and it must not
        be writable by anyone but its owner.

Loading DB routines from perl5db.pl version 1.25
Editor support available.

Enter h or `h h' for help, or `perldoc perldebug' for more help.

main::(-e:1):   1
  DB<1> print (2+2)*5;;
4
  DB<2> q

P:\test>perl -wle"print (2+2)*5"
print (...) interpreted as function at -e line 1.
Useless use of multiplication (*) in void context at -e line 1.
4