Merge "Update shell_and_utilities docs for R."

bzip2: bzcat bzip2 bunzip2

gavinhoward/bc: bc

one-true-awk: awk

toolbox: getevent getprop setprop start stop

toybox: acpi base64 basename bc blkid blockdev cal cat chattr chcon chgrp

chmod chown chroot chrt cksum clear cmp comm cp cpio cut date dd df

diff dirname dmesg dos2unix du echo egrep env expand expr fallocate

false fgrep file find flock fmt free freeramdisk fsfreeze getconf

getenforce getfattr grep groups gunzip gzip head help hostname hwclock

i2cdetect i2cdump i2cget i2cset iconv id ifconfig inotifyd insmod

install ionice iorenice iotop kill killall ln load\_policy log logname

losetup ls lsattr lsmod lsof lspci lsusb makedevs md5sum microcom

toybox: acpi base64 basename blkid blockdev cal cat chattr chcon chgrp chmod

chown chroot chrt cksum clear cmp comm cp cpio cut date dd devmem

df diff dirname dmesg dos2unix du echo egrep env expand expr fallocate

false fgrep file find flock fmt free freeramdisk fsfreeze fsync getconf

getenforce getfattr getopt grep groups gunzip gzip head help hostname

hwclock i2cdetect i2cdump i2cget i2cset iconv id ifconfig inotifyd

insmod install ionice iorenice iotop kill killall ln load\_policy log

logname losetup ls lsattr lsmod lsof lspci lsusb makedevs md5sum microcom

mkdir mkfifo mknod mkswap mktemp modinfo modprobe more mount mountpoint

mv nbd-client nc netcat netstat nice nl nohup nproc nsenter od partprobe

paste patch pgrep pidof ping ping6 pivot\_root pkill pmap printenv

printf prlimit ps pwd pwdx readlink realpath renice restorecon rev

rfkill rm rmdir rmmod runcon sed sendevent seq setenforce setfattr

setsid sha1sum sha224sum sha256sum sha384sum sha512sum sleep sort split

stat strings stty swapoff swapon sync sysctl tac tail tar taskset tee

time timeout top touch tr traceroute traceroute6 true truncate tty tunctl

ulimit umount uname uniq unix2dos unlink unshare uptime usleep uudecode

uuencode uuidgen vconfig vmstat watch wc which whoami xargs xxd yes zcat

printf prlimit ps pwd pwdx readelf readlink realpath renice restorecon

rev rfkill rm rmdir rmmod runcon sed sendevent seq setenforce setfattr

setsid sha1sum sha224sum sha256sum sha384sum sha512sum sleep sort

split stat strings stty swapoff swapon sync sysctl tac tail tar taskset

tee time timeout top touch tr traceroute traceroute6 true truncate

tty tunctl ulimit umount uname uniq unix2dos unlink unshare uptime

usleep uudecode uuencode uuidgen vconfig vi vmstat watch wc which

whoami xargs xxd yes zcat