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:
    [, [[, adduser, arp, arping, awk, basename, bunzip2, bzcat, cat, catv, chmod,
    chroot, chrt, chvt, cksum, clear, cmp, cp, crond, crontab, cut, date, dd, deallocvt,
    deluser, df, diff, dirname, dmesg, dos2unix, du, echo, egrep, eject, env, expr,
    false, fbset, fdflush, fdformat, fdisk, fgrep, find, fold, free, freeramdisk,
    fsck, fuser, getopt, getty, grep, gunzip, gzip, halt, hdparm, head, hexdump,
    hostid, hostname, hwclock, id, ifconfig, ifdown, ifup, inetd, init, insmod,
    install, ipcrm, ipcs, kill, killall, killall5, klogd, last, length, less, linuxrc,
    ln, logger, login, logname, logread, losetup, ls, lsmod, makedevs, md5sum, mdev,
    mesg, mkdir, mkfifo, mknod, mktemp, modprobe, more, mount, mountpoint, mv, netstat,
    nice, nohup, nslookup, od, openvt, passwd, patch, pidof, ping, ping6, pipe_progress,
    pivot_root, poweroff, printenv, printf, ps, pwd, rdate, readlink, realpath,
    reboot, renice, reset, rm, rmdir, rmmod, route, run-parts, runlevel, sed, seq,
    setconsole, setlogcons, sha1sum, sleep, sort, start-stop-daemon, stat, strings,
    stty, sum, switch_root, sync, sysctl, syslogd, tail, tar, tee, telnet, telnetd,
    test, tftp, time, top, touch, tr, traceroute, true, tty, udh***, umount, uname,
    uncompress, uniq, unix2dos, unzip, uptime, usleep, vconfig, vi, vlock, watch,
    watchdog, wc, wget, which, who, whoami, xargs, yes, zcat, zcip