[FWP] TMTOWTDI

[Vicki Brown <vlb@cfcl.com>]

# Which way would you pick?  Why

# Problem
# You have an external command to run from perl; the command returns a
# large chunk of newline separated data which you want to process, line
# per line.
#
# Would you:
#
#    1) write the returned data to a file, open it, and loop through the lines
#
#    2) do an open with a pipe when you call the external command and attach
#       the data to the filehandle, then iterate over <HANDLE>

         open(HANDLE, "command |")
         ...
         while (<HANDLE>) {
         ...

#    3) stuff the returned data into a large string variable, split it, and
#       foreach across the result

          $result = `command`;
          @lines = split(/\n/, $result);
          foreach $line (@lines) {
 
#    4) none of the above (in which case what would you do?)
#
# And the bonus question: why?
-- --
        |\      _,,,---,,_       Vicki Brown <vlb@cfcl.com>
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