OP and OP's additional notes suggest that the objective is a multi-level or "tiered" selection of data.

  1. Select from among many inputs to one "output file"
  2. Then sub-select lines from "output file" to a "final output file."

The problem then, is the OP's non-specification of the criteria by which one discards some lines from the "output file" and/or selects others for inclusion in the "final output file."

If this is indeed what you intend, Annonymonk, please let us know. Is the basis for subselection to be

In reply to Re: searching for multiple lines from outfile and printing them all in the final outfile by ww
in thread searching for multiple lines from outfile and printing them all in the final outfile by Anonymous Monk

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