Re: One liner help

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Re^2: One liner help by VinsWorldcom (Prior) on Oct 08, 2014 at 19:55 UTC
Thanks. I did it slightly modified borrowing the -l from kennethk above: (Windows 7 x64 / Strawberry Perl v5.18.1 MSWin32-x64-multi-thread) `VinsWorldcomC:\Users\VinsWorldcom\tmp> perl -alnF"/\./" -e "print join + q{.}, reverse @F" zones.txt 10.100.1 10.100.2 10.100.3` [download]	[reply] [d/l]
Re^3: One liner help by toolic (Bishop) on Oct 08, 2014 at 20:03 UTC
Nice. And golf it down with -E/say: `perl -anlF"/\./" -E"say join q{.},reverse@F" zones.txt` [download]	[reply] [d/l]
Re^4: One liner help by kennethk (Abbot) on Oct 09, 2014 at 15:52 UTC
Golf? `-p` and `$_=` save you one space over `-n` and `say`: `perl -aplF"/\./" -E"$_=join q{.},reverse@F" zones.txt` [download] and a manual split takes less than `-F` (assuming you don't get flags for free): `perl -lpE"$_=join q{.},reverse split/\./" zones.txt` [download] Using `$,` in place of `join` saves you 2, except then you lose `$_=` `perl -lnE"$,=q{.};say reverse split/\./" zones.txt` [download] but you still win w/ a regex: `perl -pE"s/(.+)\.(.+)\.(.+)/$3.$2.$1/" zones.txt` [download] and to me, that one seems a whole lot more obvious than the other offerings. #11929 First ask yourself `How would I do this without a computer?' Then have the computer do it the same way.	[reply] [d/l] [select]