A long time ago, Tom Tanner packaged many of the GNU utilities for Maemo.
These packages install their binaries to /usr/bin/gnu to avoid conflicting with busybox.

Below is a list of the packages and the utilities they contain.

grep-gnu
grep egrep fgrep

sed-gnu
sed

findutils-gnu
find xargs

diffutils-gnu
diff diff3 sdiff cmp

coreutils-gnu
arch base64 basename cat chcon chgrp chmod chown chroot cksum comm cp csplit cut date dd df dir dircolors dirname du echo env expand expr factor false flock fmt fold groups head hostid id install join link ln logname ls md5sum mkdir mkfifo mknod mktemp mv nice nl nohup nproc od paste pathchk pinky pr printenv printf ptx pwd readlink rm rmdir runcon sha*sum seq shred sleep sort split stat stty sum sync tac tail tee test timeout touch tr true truncate tsort tty uname unexpand uniq unlink users vdir wc who whoami yes