2 echo -e "\ty" | expand -t 3 ../../busybox > foo
3 echo -e "\ty" | busybox unexpand -t 3 ../../busybox > bar
5 test ! -f foo -a -f bar
11 echo -e "\ty\tx" | expand -it 3 ../../busybox > foo
12 echo -e "\ty\tx" | busybox unexpand -it 3 ../../busybox > bar
14 test ! -f foo -a -f bar