Re^2: Feed ARGV into one-liner

[fod]

Can you explain this please? In particular what does B';$'F=shift do? It's melting my head.... thanks

[ikegami]

Shell literal

-MB';$'F=shift

produces the arg

-MB;$F=shift

You're probably familiar with -M. It used to load a module. It does so by inserting

use MODULENAME;

into the source. In this case, MODULENAME is B;$F=shift, so

use B;$F=shift;

is inserted into the source. B is a core module. It's not being used at all by the program. The only purpose to load it is to execute $F=shift; before the -n loop with very few keystrokes. The following would also work; it's just not nearly as short:

'-MData::Dumper; $F=shift'

[fod]

Ah very clever. Very... lateral

Thank you