C:\DELL\v>perl -wle"print -64.0.0.1" Argument "@\0\0^A" isn't numeric in negation (-) at -e line 1. 0 #### C:\DELL\v>perl -wle"print -64.0.0.1" Argument "@\0\0^A" isn't numeric in negation (-) at -e line 1. 0 C:\DELL\v>perl -wle"print -65.0.0.1" -A ☺ C:\DELL\v>perl -wle"print -90.0.0.1" -Z ☺ C:\DELL\v>perl -wle"print -91.0.0.1" Argument "[\0\0^A" isn't numeric in negation (-) at -e line 1. 0 C:\DELL\v>perl -wle"print -96.0.0.1" Argument "`\0\0^A" isn't numeric in negation (-) at -e line 1. 0 C:\DELL\v>perl -wle"print -97.0.0.1" -a ☺ C:\DELL\v>perl -wle"print -122.0.0.1" -z ☺ C:\DELL\v>perl -wle"print -123.0.0.1" Argument "{\0\0^A" isn't numeric in negation (-) at -e line 1. 0