a good place to start is the help link below, more coming soon.

am
applypatch	usage: applypatch <src-file> <tgt-file> <tgt-sha1> <tgt-size> [<src-sha1>:<patch> ...] or applypatch -c <file> [<sha1> ...] or applypatch -s <bytes> or applypatch -l Filenames may be of the form MTD:<partition>:<len_1>:<sha1_1>:<len_2>:<sha1_2>:... to specify reading from or writing to an MTD partition.
bmgr
dbus-daemon	No configuration file specified. dbus-daemon [--version] [--session] [--system] [--config-file=FILE] [--print-address[=DESCRIPTOR]] [--print-pid[=DESCRIPTOR]] [--fork] [--nofork] [--introspect]
dhcpcd	usage: dhcpcd [-dknpqxADEGHKLOTV] [-c script] [-f file ] [-h hostname] [-i classID ] [-l leasetime] [-m metric] [-o option] [-r ipaddr] [-s ipaddr] [-t timeout] [-u userclass] [-F none|ptr|both] [-I clientID] [-C hookscript] [-Q option] [-X ipaddr] <interface>
fsck_msdosfs	usage: fsck_msdosfs -p [-f] filesystem ... fsck_msdosfs [-ny] filesystem ...
getevent
hciattach	hciattach - HCI UART driver initialization utility Usage: hciattach [-n] [-p] [-b] [-t timeout] [-s initial_speed] <tty> <type | id> [speed] [flow|noflow] [bdaddr] hciattach -l
hd	Usage: hd [-b base] [-c count] [-r delay] file
help
ime
input	usage: input [text|keyevent] input text <string> input keyevent <event_code>
insmod	BusyBox v1.16.1androidBTEP (2010-05-05 21:05:13 PDT) multi-call binary. Usage: insmod [-qfwrsv] MODULE [symbol=value]... Options: -q Quiet -f Force -w Wait for unload -r Remove module (stacks) or do autoclean -s Report via syslog instead of stderr -v Verbose
iperf
log	USAGE: log [-p priorityChar] [-t tag] message priorityChar should be one of: v,d,i,w,e
logwrapper	Usage: logwrapper [-x] BINARY [ARGS ...] Forks and executes BINARY ARGS, redirecting stdout and stderr to the Android logging system. Tag is set to BINARY, priority is always LOG_INFO. -x: Causes logwrapper to SIGSEGV when BINARY terminates fault address is set to the status of wait()
monkey
mount
mtpd	Usage: mtpd <protocol-args> '' <pppd-args>, where protocol-args are one of: l2tp <server> <port> [secret] pptp <server> <port>
netstat
newfs_msdos

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