in reply to adding a column of integers

This ruby solution also deserves a mention as it doesn't slurp the file thanks to ruby iterators. 

ruby -we 'puts $<.inject(0) {|a, x| a + x.to_i };'

[download]

Replies are listed 'Best First'.
Re^2: adding a column of integers
by ikegami (Patriarch) on Jun 26, 2006 at 18:30 UTC

    perl -lne '$sum+=$_; END{print $sum}'
    and
    perl -le '$sum+=$_ while <>; print $sum'
    don't slurp either. <> is an iterator (in scalar context).

[reply]
[d/l]
[select]

In Section Seekers of Perl Wisdom