cd
ls
touch
pwd
cp
mv
rm
mkdir
rmdir
find
tree
stat

cat
less
more
head
tail
nano
vi
vim
cut
sort
uniq
wc
diff
tee

chmod
chown
chgrp
umask
lsattr
chattr

du
df
free
uptime
lsblk
mount
umount
fsck

top
htop
ps
kill
killall
jobs
bg
fg

ping
curl
wget
ifconfig
ip
netstat
ss
nc
scp
rsync
tcpdump
traceroute

grep
awk
sed
cut
tr

shutdown
reboot
systemctl
service
journalctl
history
alias
export

apt update
apt upgrade
apt install
apt remove
dpkg

sudo
su
whoami
id
passwd
groupadd
useradd
groupdel
userdel

echo
date
man
env
who
w
uptime