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]

In reply to Re^2: join program in one-liner by bmann
in thread join program in one-liner by sh1tn

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