1#!/bin/sh23set -e45trap 'rm -f file*' EXIT6trap 'exit $?' HUP INT TERM78############################################################################9#extract 3rd member1011cp master.a file.a1213$EXEC scc ar -xv file.a file314diff -u file3 - <<EOF15and at the end, this is the last file16that should go at the end of the file,17thus it should go in the third position.18EOF