unclear, do you need certain columns or certain rows?

using split should help in both cases

  DB<108> $line='ATOM 1287 O LYS B 65 49.675 57.571 62.721 1.00 31.87 
+O'
 => "ATOM 1287 O LYS B 65 49.675 57.571 62.721 1.00 31.87 O"

  DB<109> @col =split / /,$line
 => (
  "ATOM",
  1287,
  "O",
  "LYS",
  "B",
  65,
  "49.675",
  "57.571",
  "62.721",
  "1.00",
  "31.87",
  "O",
)

  DB<110> @col[1..3,5]
 => (1287, "O", "LYS", 65)

[download]

Cheers Rolf

In reply to Re: newbie need help with a simple code by LanX
in thread newbie need help with a simple code by perlmonk007

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