ok here is for you to compare
# busybox --help
BusyBox v1.00-pre5 (2004.10.06-16:17+0000) multi-call binary
Usage: busybox [function] [arguments]...
or: [function] [arguments]...
BusyBox is a multi-call binary that combines many common Unix
utilities into a single executable. Most people will create a
link to busybox for each function they wish to use, and BusyBox
will act like whatever it was invoked as.
Currently defined functions:
[, addgroup, adduser, ash, awk, basename, busybox, cat, chgrp,
chmod, chown, chroot, chvt, clear, cp, cpio, cut, dc, dd, deallocvt,
delgroup, deluser, df, dirname, dmesg, du, echo, egrep, env, expr,
false, fbset, fdisk, fgrep, free, fsck.minix, getty, grep, head,
kill, klogd, ln, logger, login, losetup, ls, md5sum, mkdir, mkfifo,
mkfs.minix, mknod, mkswap, mktemp, more, mv, od, openvt, passwd,
ps, pwd, reset, rm, rmdir, sed, sleep, start-stop-daemon, stty,
su, sync, syslogd, tail, test, top, touch, tr, traceroute, true,
tty, uname, uncompress, uptime, vi, watchdog, which, who, yes
# ls -al /bin/busybox
-rwsr-xr-x 1 root root 348728 Jan 1 1970 /bin/busybox
coreutils :-rwxr-xr-x 1 root root 24440 Oct 20 14:17 [
-rwxr-xr-x 1 root root 13036 Oct 20 14:17 basename
-rwxr-xr-x 1 root root 16764 Oct 20 14:17 cat
-rwxr-xr-x 1 root root 36736 Oct 20 14:17 chgrp
-rwxr-xr-x 1 root root 36512 Oct 20 14:17 chmod
-rwxr-xr-x 1 root root 39140 Oct 20 14:17 chown
-rwxr-xr-x 1 root root 13260 Oct 20 14:17 chroot
-rwxr-xr-x 1 root root 19392 Oct 20 14:17 cksum
-rwxr-xr-x 1 root root 15184 Oct 20 14:17 comm
-rwxr-xr-x 1 root root 52304 Oct 20 14:17 cp
-rwxr-xr-x 1 root root 57244 Oct 20 14:17 csplit
-rwxr-xr-x 1 root root 27488 Oct 20 14:17 cut
-rwxr-xr-x 1 root root 43720 Oct 20 14:17 date
-rwxr-xr-x 1 root root 32240 Oct 20 14:17 dd
-rwxr-xr-x 1 root root 93048 Oct 20 14:17 dir
-rwxr-xr-x 1 root root 21372 Oct 20 14:17 dircolors
-rwxr-xr-x 1 root root 13180 Oct 20 14:17 dirname
-rwxr-xr-x 1 root root 59724 Oct 20 14:17 du
-rwxr-xr-x 1 root root 14200 Oct 20 14:17 echo
-rwxr-xr-x 1 root root 14200 Oct 20 14:17 env
-rwxr-xr-x 1 root root 15836 Oct 20 14:17 expand
-rwxr-xr-x 1 root root 48196 Oct 20 14:17 expr
-rwxr-xr-x 1 root root 21252 Oct 20 14:17 factor
-rwxr-xr-x 1 root root 12072 Oct 20 14:17 false
-rwxr-xr-x 1 root root 20204 Oct 20 14:17 fmt
-rwxr-xr-x 1 root root 16140 Oct 20 14:17 fold
-rwxr-xr-x 1 root root 1681 Oct 20 14:15 groups
-rwxr-xr-x 1 root root 29280 Oct 20 14:17 head
-rwxr-xr-x 1 root root 12568 Oct 20 14:17 hostid
-rwxr-xr-x 1 root root 13036 Oct 20 14:17 hostname
-rwxr-xr-x 1 root root 14792 Oct 20 14:17 id
-rwxr-xr-x 1 root root 53484 Oct 20 14:17 install
-rwxr-xr-x 1 root root 26732 Oct 20 14:17 join
-rwxr-xr-x 1 root root 16972 Oct 20 14:17 kill
-rwxr-xr-x 1 root root 12876 Oct 20 14:17 link
-rwxr-xr-x 1 root root 22688 Oct 20 14:17 ln
-rwxr-xr-x 1 root root 12728 Oct 20 14:17 logname
-rwxr-xr-x 1 root root 93048 Oct 20 14:17 ls
-rwxr-xr-x 1 root root 29532 Oct 20 14:17 md5sum
-rwxr-xr-x 1 root root 20012 Oct 20 14:17 mkdir
-rwxr-xr-x 1 root root 16124 Oct 20 14:17 mkfifo
-rwxr-xr-x 1 root root 20404 Oct 20 14:17 mknod
-rwxr-xr-x 1 root root 56012 Oct 20 14:17 mv
-rwxr-xr-x 1 root root 15580 Oct 20 14:17 nice
-rwxr-xr-x 1 root root 47120 Oct 20 14:17 nl
-rwxr-xr-x 1 root root 14688 Oct 20 14:17 nohup
-rwxr-xr-x 1 root root 35264 Oct 20 14:17 od
-rwxr-xr-x 1 root root 15736 Oct 20 14:17 paste
-rwxr-xr-x 1 root root 14284 Oct 20 14:17 pathchk
-rwxr-xr-x 1 root root 18444 Oct 20 14:17 pinky
-rwxr-xr-x 1 root root 39008 Oct 20 14:17 pr
-rwxr-xr-x 1 root root 12888 Oct 20 14:17 printenv
-rwxr-xr-x 1 root root 22560 Oct 20 14:17 printf
-rwxr-xr-x 1 root root 55536 Oct 20 14:17 ptx
-rwxr-xr-x 1 root root 12812 Oct 20 14:17 pwd
-rwxr-xr-x 1 root root 14200 Oct 20 14:17 readlink
-rwxr-xr-x 1 root root 34992 Oct 20 14:17 rm
-rwxr-xr-x 1 root root 14236 Oct 20 14:17 rmdir
-rwxr-xr-x 1 root root 18844 Oct 20 14:17 seq
-rwxr-xr-x 1 root root 29532 Oct 20 14:17 sha1sum
-rwxr-xr-x 1 root root 41016 Oct 20 14:17 shred
-rwxr-xr-x 1 root root 18488 Oct 20 14:17 sleep
-rwxr-xr-x 1 root root 43380 Oct 20 14:17 sort
-rwxr-xr-x 1 root root 23820 Oct 20 14:17 split
-rwxr-xr-x 1 root root 32464 Oct 20 14:17 stat
-rwxr-xr-x 1 root root 37196 Oct 20 14:17 stty
-r-sr-xr-x 1 root root 17340 Oct 20 14:17 su
-rwxr-xr-x 1 root root 27148 Oct 20 14:17 sum
-rwxr-xr-x 1 root root 12504 Oct 20 14:17 sync
-rwxr-xr-x 1 root root 44176 Oct 20 14:17 tac
-rwxr-xr-x 1 root root 41900 Oct 20 14:17 tail
-rwxr-xr-x 1 root root 14216 Oct 20 14:17 tee
-rwxr-xr-x 1 root root 22548 Oct 20 14:17 test
-rwxr-xr-x 1 root root 31152 Oct 20 14:17 touch
-rwxr-xr-x 1 root root 27916 Oct 20 14:17 tr
-rwxr-xr-x 1 root root 12072 Oct 20 14:17 true
-rwxr-xr-x 1 root root 23260 Oct 20 14:17 tsort
-rwxr-xr-x 1 root root 12712 Oct 20 14:17 tty
-rwxr-xr-x 1 root root 14184 Oct 20 14:17 uname
-rwxr-xr-x 1 root root 15992 Oct 20 14:17 unexpand
-rwxr-xr-x 1 root root 21160 Oct 20 14:17 uniq
-rwxr-xr-x 1 root root 12908 Oct 20 14:17 unlink
-rwxr-xr-x 1 root root 15132 Oct 20 14:17 uptime
-rwxr-xr-x 1 root root 14252 Oct 20 14:17 users
-rwxr-xr-x 1 root root 93048 Oct 20 14:17 vdir
-rwxr-xr-x 1 root root 22496 Oct 20 14:17 wc
-rwxr-xr-x 1 root root 20044 Oct 20 14:17 who
-rwxr-xr-x 1 root root 12792 Oct 20 14:17 whoami
-rwxr-xr-x 1 root root 12728 Oct 20 14:17 yes