alias
unalias

set
unset
export
env

log
logcat

whoami
sudo
sh
id
su
passwd
logout
exit
quit

xterm
x11
warn
title
tick

if
for
case

builtin | command
cron
sleep
time

exec

gc
top

hostid
hostname

echo
buff
locale
basename
trim
date
clear
throw
mmspt
bg

call
open

prg

ping
curl
who

ip 
netstat 

pwd
ls
mount
umount
fdisk
lsblk
rm
cat
tac
head
tail
cp
cache
rmsfix
grep
find
nano
java
javac 
true | false
which
file 

svchost

!
!!
.