Re: s/// + tr/// when perl -ni -e on semi-colons in one liners echoed to files

Well, -n doesn't print, but -p does print :)

$ perl -le " print qq{a;b;c;d} "
a;b;c;d

$ perl -le " print qq{a;b;c;d} " | perl -ne " tr/;/\n/ ; "

$ perl -le " print qq{a;b;c;d} " | perl -pe " tr/;/\n/ ; "
a
b
c
d
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Comment on Re: s/// + tr/// when perl -ni -e on semi-colons in one liners echoed to files Download Code

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Re^2: s/// + tr/// when perl -ni -e on semi-colons in one liners echoed to files by Don Coyote (Hermit) on Nov 18, 2012 at 12:47 UTC
ok, thanks for the quick reply. It seems I was assuming -i edits 'in place'. And -n / -p only controlled if STDOUT was printed to or not.(i think it was SED). Just trying to analyse more complex stuff while tripping over the 'simple' stuff...	[reply]
Re^3: s/// + tr/// when perl -ni -e on semi-colons in one liners echoed to files by Anonymous Monk on Nov 18, 2012 at 12:57 UTC
Just trying to analyse more complex stuff while tripping over the 'simple' stuff... You can always read all about it :) in place edit EDIT AND BACKUP FILES SAFELY ARGV::readonly Iterator::Diamond Iterator::Files -pi.orig -pi.bak Write to existing file with character insert, Dangerous diamonds! safe diamonds FMTYEWTK About Mass Edits In Perl - Perl.com Good-bye Unix filter idiom	[reply]
Re^4: s/// + tr/// when perl -ni -e on semi-colons in one liners echoed to files by Don Coyote (Hermit) on Nov 18, 2012 at 13:12 UTC
Yes, maybe one for the chatterbox on reflection. I'm reading a lot about a lot, ~~packages~~,~~modules~~,~~symbols~~, today. Then this invocation frustration arose. Couldn't see the wood for the trees. These one liners do seem to have a way of over extending themselves.	[reply]


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