Re: join program in one-liner

Hi ppl,

A little better than [id://eric256], based in the [id://Joost]'s idea:

perl -lne '$a[$.].=$_;$.=0 if eof;END{print for@a}'
[download]

I don't know also why $. don't reset, but we can always help it.

Comment on Re: join program in one-liner Download Code

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Re^2: join program in one-liner by bmann (Priest) on Aug 19, 2005 at 22:16 UTC
Same as yours, but cut out unnecessary space and get rid of the END block: `# 1 2 3 4 #23456789012345678901234567890123456789012345 perl -lne'$a[$.].=$_;$.=0if eof}{print for@a'` [download] BTW, perldoc perlvar says: `$. is reset when the filehandle is closed, but not when an open filehandle is reopened without an intervening close(). For more details, see "I/O Operators" in perlop. Because "<>" never does an explicit close, line numbers increase across ARGV` [download]	[reply] [d/l] [select]
Re^3: join program in one-liner by truedfx (Monk) on Aug 28, 2005 at 11:40 UTC
And $.=0if eof can be changed: `# 1 2 3 4 #234567890123456789012345678901234567890123 perl -lne'$a[$.].=$_;$.*=!eof}{print for@a'` [download]	[reply] [d/l]