sudo apt update
sudo apt upgrade
sudo apt update && sudo apt dist-upgrade
sudo lsb_release -a
sudo apt install chromium-browser
sudo apt install openssh-server
sudo ufw allow ssh
sudo apt install lm-sensors(watch sensors)
sudo apt install libreoffice
sudo apt install bluez (sudo btmon)
(/etc/bluetooth/main.conf)
sudo apt install iw(iwlist/iwlist wlp1s0 scanning)
sudo apt install hwinfo(hwinfo)
sudo apt install tree
lscpu/lshw/lsusb
uptime/last/tree/sort/stat/wc/wget/whatis wget/which/who/whereis cat
netstat -a/ss -antl/nmap/nc -zv 192.168.1.5 22
sudo iptables -L -n -v
ps -eo pid,ppid,cmd,%mem,%cpu –sort=-%mem | head (shows the top running processes by highest memory and CPU usage.)
du -ah | sort -hr | head -10 (find biggest files)
sudo apt install s-tui stress (stress test)
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net：
ip link
sudo netplan apply
ip addr show dev ens3
ifconfig wlp1s0 down/up
/etc/netplan/00-installer-config.yaml
# This is the network config written by ‘subiquity’
#network:
# ethernets:
# enp0s31f6:
# dhcp4: true
# version: 2
network:
wifis:
wlp1s0:
dhcp4: false
addresses: [192.168.2.4/24]
gateway4: 192.168.2.1
nameservers:
addresses: [192.168.2.1]
access-points:
“name”:
password: “******”
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sudo dpkg -i package-name.deb
sudo apt install ./deb-package.deb
sudo apt-get install ./deb-package.deb
sudo apt-get remove package-name
sudo apt-get purge package-name
OR
sudo apt remove package-name
sudo apt purge package-name
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apt autoremove
apt policy
apt-get search [package_name]
apt-remove [package_name]
apt full-upgrade
apt list
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sudo apt install update-manager-core
sudo apt update && sudo apt dist-upgrade
sudo do-release-upgrade
sudo do-release-upgrade -d
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sudo update-manager
sudo update-manager -d