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  1. or download this
    ken@titan ~/tmp
    $ perl -e 'use strict; print "$_\n" for keys %INC;'
    ...
    $ perl -e 'use strict; my $x = xyz;'
    Bareword "xyz" not allowed while "strict subs" in use at -e line 1.
    Execution of -e aborted due to compilation errors.
    
  2. or download this
    ken@titan ~/tmp
    $ perl -e 'use 5.012; print "$_\n" for keys %INC;'
    ...
    $ perl -e 'use 5.012; my $x = xyz;'
    Bareword "xyz" not allowed while "strict subs" in use at -e line 1.
    Execution of -e aborted due to compilation errors.