Currently defined functions include:
-adjtimex, ar, basename, busybox, cat, chgrp, chmod, chown, chroot, chvt, clear,
-cmp, cp, cpio, cut, date, dc, dd, deallocvt, df, dirname, dmesg, dos2unix, dpkg,
-dpkg-deb, du, dumpkmap, dutmp, echo, expr, false, fbset, fdflush, find, free,
-freeramdisk, fsck.minix, getopt, grep, gunzip, gzip, halt, head, hostid,
-hostname, id, ifconfig, init, insmod, kill, killall, klogd, length, ln,
-loadacm, loadfont, loadkmap, logger, logname, ls, lsmod, makedevs, md5sum,
-mkdir, mkfifo, mkfs.minix, mknod, mkswap, mktemp, more, mount, mt, mv, nc,
-nslookup, ping, pivot_root, poweroff, printf, ps, pwd, rdate, readlink, reboot,
-renice, reset, rm, rmdir, rmmod, route, rpm2cpio, sed, setkeycodes,
-sh, sleep, sort, stty, swapoff, swapon, sync, syslogd, tail, tar, tee, telnet,
-test, tftp, touch, tr, true, tty, umount, uname, uniq, unix2dos, update, uptime,
-usleep, uudecode, uuencode, watchdog, wc, wget, which, whoami, xargs, yes, zcat,
-[
+ addgroup, adduser, adjtimex, ar, arping, ash, awk, basename, bunzip2,
+ busybox, bzcat, cal, cat, chgrp, chmod, chown, chroot, chvt, clear,
+ cmp, cp, cpio, crond, crontab, cut, date, dc, dd, deallocvt, delgroup,
+ deluser, df, dirname, dmesg, dos2unix, dpkg, dpkg-deb, du, dumpkmap,
+ dumpleases, dutmp, echo, egrep, env, expr, false, fbset, fdflush,
+ fdformat, fgrep, find, fold, free, freeramdisk, fsck.minix, ftpget,
+ ftpput, getopt, getty, grep, gunzip, gzip, halt, hdparm, head, hexdump,
+ hostid, hostname, httpd, hush, hwclock, id, ifconfig, ifdown, ifup,
+ inetd, init, insmod, ip, ipcalc, iplink, iproute, iptunnel, kill,
+ killall, klogd, lash, length, linuxrc, ln, loadfont, loadkmap, logger,
+ login, logname, logread, losetup, ls, lsmod, makedevs, md5sum, mesg,
+ minit, mkdir, mkfifo, mkfs.minix, mknod, mkswap, mktemp, modprobe,
+ more, mount, msh, msvc, mt, mv, nameif, nc, netstat, nslookup, od,
+ openvt, passwd, patch, pidfilehack, pidof, ping, ping6, pivot_root,
+ poweroff, printf, ps, pwd, rdate, readlink, realpath, reboot, renice,
+ reset, rm, rmdir, rmmod, route, rpm, rpm2cpio, run-parts, sed,
+ setkeycodes, sha1sum, sleep, sort, start-stop-daemon, strings, stty,
+ su, sulogin, swapoff, swapon, sync, syslogd, tail, tar, tee, telnet,
+ telnetd, test, tftp, time, top, touch, tr, traceroute, true, tty,
+ udhcpc, udhcpd, umount, uname, uncompress, uniq, unix2dos, unzip,
+ uptime, usleep, uudecode, uuencode, vconfig, vi, vlock, watch,
+ watchdog, wc, wget, which, who, whoami, xargs, yes, zcat, [
=over 4