colrm —
remove columns from a file
colrm removes selected columns from the lines of a file.
  A column is defined as a single character in a line. Input is read from the
  standard input. Output is written to the standard output.
If only the start column is specified,
    columns numbered less than the start column will be
    written. If both start and stop
    columns are specified, columns numbered less than the
    start column or greater than the
    stop column will be written. Column numbering starts
    with one, not zero.
Tab characters increment the column count to the next multiple of
    eight. Backspace characters decrement the column count by one.
The colrm command appeared in
  1BSD. It was completely rewritten for
  4.4BSD.