No faktycznie teraz działa zarówno przez telnet w Putty jak i po odpaleniu adb shell 
a już myślałem iż nie ma tak podstawowych poleceń jak cp czy ifconfig
P.S. BusyBox ma wkompilowanych całkiem sporo poleceń:
# busybox
BusyBox v1.21.1 (2013-09-06 10:02:21 CST) multi-call binary.
BusyBox is copyrighted by many authors between 1998-2012.
Licensed under GPLv2. See source distribution for detailed
copyright notices.
Usage: busybox [function [arguments]...]
or: busybox --list[-full]
or: busybox --install [-s] [DIR]
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:
[, [[, acpid, add-shell, addgroup, adduser, adjtimex, ar, arp, arping,
ash, awk, base64, basename, bbconfig, beep, blkid, blockdev,
bootchartd, brctl, bunzip2, bzcat, bzip2, cal, cat, catv, chat, chattr,
chgrp, chmod, chown, chpasswd, chpst, chroot, chrt, chvt, cksum, clear,
cmp, comm, conspy, cp, cpio, crond, crontab, cryptpw, cttyhack, cut,
date, dc, dd, deallocvt, delgroup, deluser, depmod, devfsd, devmem, df,
dhcprelay, diff, dirname, dmesg, dnsd, dnsdomainname, dos2unix, dpkg,
dpkg-deb, du, dumpkmap, dumpleases, echo, ed, egrep, eject, env,
envdir, envuidgid, ether-wake, expand, expr, fakeidentd, false, fbset,
fbsplash, fdflush, fdformat, fdisk, fgconsole, fgrep, find, findfs,
flash_eraseall, flash_lock, flash_unlock, flashcp, flock, fold, free,
freeramdisk, fsck, fsck.minix, fsync, ftpd, ftpget, ftpput, fuser,
getopt, getty, grep, groups, gunzip, gzip, halt, hd, hdparm, head,
hexdump, hostid, hostname, httpd, hush, hwclock, id, ifconfig, ifdown,
ifenslave, ifplugd, ifup, inetd, init, inotifyd, insmod, install,
ionice, iostat, ip, ipaddr, ipcalc, ipcrm, ipcs, iplink, iproute,
iprule, iptunnel, kbd_mode, kill, killall, killall5, klogd, last, less,
linux32, linux64, linuxrc, ln, loadfont, loadkmap, logger, login,
logname, logread, losetup, lpd, lpq, lpr, ls, lsattr, lsmod, lsof,
lspci, lsusb, lzcat, lzma, lzop, lzopcat, makedevs, makemime, man,
md5sum, mdev, mesg, microcom, mkdir, mkdosfs, mke2fs, mkfifo,
mkfs.ext2, mkfs.minix, mkfs.reiser, mkfs.vfat, mknod, mkpasswd, mkswap,
mktemp, modinfo, modprobe, more, mount, mountpoint, mpstat, msh, mt,
mv, nameif, nanddump, nandwrite, nbd-client, nc, netstat, nice, nmeter,
nohup, nslookup, ntpd, od, openvt, passwd, patch, pgrep, pidof, ping,
ping6, pipe_progress, pivot_root, pkill, pmap, popmaildir, poweroff,
powertop, printenv, printf, ps, pscan, pstree, pwd, pwdx, raidautorun,
rdate, rdev, readlink, readprofile, realpath, reboot, reformime,
remove-shell, renice, reset, resize, rev, rfkill, rm, rmdir, rmmod,
route, rpm, rpm2cpio, rtcwake, run-parts, runlevel, runsv, runsvdir,
rx, script, scriptreplay, sed, sendmail, seq, setarch, setconsole,
setfont, setkeycodes, setlogcons, setserial, setsid, setuidgid, sh,
sha1sum, sha256sum, sha3sum, sha512sum, showkey, slattach, sleep,
smemcap, softlimit, sort, split, start-stop-daemon, stat, strings,
stty, su, sulogin, sum, sv, svlogd, swapoff, swapon, switch_root, sync,
sysctl, syslogd, tac, tail, tar, taskset, tcpsvd, tee, telnet, telnetd,
test, tftp, tftpd, time, timeout, top, touch, tr, traceroute,
traceroute6, true, tty, ttysize, tunctl, tune2fs, ubiattach, ubidetach,
ubimkvol, ubirmvol, ubirsvol, ubiupdatevol, udhcpc, udhcpd, udpsvd,
umount, uname, uncompress, unexpand, uniq, unix2dos, unlzma, unlzop,
unxz, unzip, uptime, users, usleep, uudecode, uuencode, vconfig, vi,
vlock, volname, wall, watch, watchdog, wc, wget, which, who, whoami,
whois, xargs, xz, xzcat, yes, zcat, zcip
I lepiej jednak używać telnetu przez Putty bo w telnet na Windows czy adb shell wyświetla jakieś krzaczki ←[0G# ls←[0K←[0G←[4C po wciśnięciu klawisza kursora do góry czy innych klawiszy funkcyjnych np. backspace
