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Perl: the Markov chain saw

Re^2: Favourite One-liners?

by kaif (Friar)
on Jun 28, 2005 at 14:21 UTC ( #470651=note: print w/replies, xml ) Need Help??

in reply to Re: Favourite One-liners?
in thread Favourite One-liners?

My most common one-liner, which accomplishes the "arithmetic evaluation" goal, is perl -ple'$_="> ".eval' (Déjà vu?)

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Re^3: Favourite One-liners?
by tlm (Prior) on Jul 02, 2005 at 05:07 UTC

    Other than the inherent awesomeness of producing a Perl REPL in under 25 characters, I don't see why one would prefer this one-liner to the even shorter

    perl -de1
    True, with the debugger one has to suffer the aggravation of having to prepend p or x to expressions if one wants to see the evaluated output, but in return one gets plenty of features like (off the top of my head):
    1. Readline with history (this one alone saves so much typing that it more than compensates for having to type those extra p's and x's);
    2. The option of paged output;
    3. The Joy of x, including not only pretty printing of complex data structures (with optional paging), but also the ability to specify the depth the pretty-printing;

    the lowliest monk