remove columns from a file NAME colrm - remove columns from a file SYNOPSIS colrm [first [last]] DESCRIPTION colrm removes sele......ee-id 1 --tree-parent 2 --tree 3 1 0 A 2 1 |-AA 4 2 | |-AAA 5 2 | `-AAB 3 1 `-AB SEE ALSO colrm (1), ls (1), paste (1), sort (1) REPORTING BUGS For bug reports, use the issue tr…