TESTING WITH Perl

commandline session

$perl test1.pl
1..1
ok 1
$cat test1.pl
#!/usr/bin/perl -w

print "1..1n";

print 1 + 1 == 2 ? "ok 1n" : "not ok 1n";
$perl
1+1
$perl -e
No code specified for -e.
$perl -d

Loading DB routines from perl5db.pl version 1.33
Editor support available.

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

Debugged program terminated.  Use q to quit or R to restart,
  use o inhibit_exit to avoid stopping after program termination,
  h q, h R or h o to get additional info.
  DB quit

  DB exit
$perl -d -e 1

Loading DB routines from perl5db.pl version 1.33
Editor support available.

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

main::(-e:1):	1
  DB 1+1

  DB print 1+1
2
  DB print 1 + 1 == 2
1
  DB print 1 + 1 == 3

  DB print 2 + 2 == 3

  DB print 2 + 2 == 4
1
  DB