Generate QR Code for WiFi

 install ‘qrencode’ command. $ sudo apt install qrencode generate QR code png $ qrencode -o image.png ‘WIFI:T:WPA;S:SSID;P:PASSWORD;;’ Parameter Example Description T WPA Authentication type; can be WEP or WPA, or leave empty for no password. S SSID Network SSID. Required. P pasXXXX Password, ignored if T is left blank. H true Optional. True if the network SSID is hidden.

Setup OneDrive in Ubuntu 18.04

Install OneDrive deb package. $ sudo apt install onedrive Sync OneDrive on user directory. $ onedrive Authorize this app visiting: https://login.microsoftonline.com/common/oauth2/v2.0/authorize?client_id=xxxxxxxxxxxxxxxxxxxxxxxx&scope=files.readwrite%20files.readwrite.all%20offline_access&response_type=code&redirect_uri=https://login.microsoftonline.com/common/oauth2/nativeclient Login to Your OneDrive Account then copy displayed URL of white page. Paste to excution terminal. enable user systemctl (daemonic). After syncing, execute following daemon $ systemctl –user enable onedrive $ systemctl –user start onedrive Reset Account or Change password or Login ID $ systemctl –user stop onedrive If do not need backup $ rm -r .config/onedrive else $ mv .config/onedrive ‘backup directory/’ reexcute ‘onedrive’ after these step.

Ubuntu LTS update

Release upgrade ex. 18.04.x -> 20.04 $ sudo do-release-upgrade -d Minor upgrade 16.04.x -> 16.04.3 ex. 16.04.2 -> 16.04.3 20.04, Not available now.(June 10) DeskTop: $ sudo apt install –install-recommends linux-generic-hwe-16.04 xserver-xorg-hwe-16.04 Server: $ sudo apt install –install-recommends linux-generic-hwe-16.04

Ubuntu 18.04 network setting

Use Netplan Put under directory ‘/etc/netplan/’.example; 50-cloud-init.yamlAfter Edit, command “netplan”  for checking option “netplan try” and for actual seting “netplan apply”. To let the interface named ‘enp2s0’ get an address via DHCP: network version: 2 renderer: networkd ethernets: enp3s0: dhcp4: true To instead set a static IP address, use the addresses key, which takes a list of (IPv4 or IPv6), addresses along with the subnet prefix length (e.g. /24). Gateway and DNS information can be provided as well: network: ethernets: enp2s0: dhcp4: no dhcp6: no addresses: [] gateway4: nameservers: addresses: [] #if use static route routes: – to: via: version: 2 Connecting to an open wireless network…