Beefy Boxes and Bandwidth Generously Provided by pair Networks
Syntactic Confectionery Delight

Re^2: join program in one-liner

by bmann (Priest)
on Aug 19, 2005 at 22:16 UTC ( #485318=note: print w/replies, xml ) Need Help??

in reply to Re: join program in one-liner
in thread join program in one-liner

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'

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

Replies are listed 'Best First'.
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'

Log In?

What's my password?
Create A New User
Domain Nodelet?
Node Status?
node history
Node Type: note [id://485318]
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others surveying the Monastery: (None)
    As of 2021-10-21 03:07 GMT
    Find Nodes?
      Voting Booth?
      My first memorable Perl project was:

      Results (82 votes). Check out past polls.