Re: Feed ARGV into one-liner

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Re^2: Feed ARGV into one-liner by fod (Friar) on Jan 22, 2010 at 09:59 UTC
Can you explain this please? In particular what does `B';$'F=shift` do? It's melting my head.... thanks	[reply] [d/l]
Re^3: Feed ARGV into one-liner by ikegami (Patriarch) on Jan 22, 2010 at 10:25 UTC
Shell literal `-MB';$'F=shift` [download] produces the arg `-MB;$F=shift` [download] You're probably familiar with `-M`. It used to load a module. It does so by inserting `use MODULENAME;` [download] into the source. In this case, `MODULENAME` is `B;$F=shift`, so `use B;$F=shift;` [download] is inserted into the source. B is a core module. It's not being used at all by the program. The only purpose to load it is to execute `$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'` [download]	[reply] [d/l] [select]
Re^4: Feed ARGV into one-liner by fod (Friar) on Jan 22, 2010 at 11:06 UTC
Ah very clever. Very... lateral Thank you	[reply]