Linux

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Linux Mint optimize
https://easylinuxtipsproject.blogspot.com/p/speed-mint.html#ID1.1

CHMOD all files/directories
find . -type f -exec chmod 660 -- {} +
find . -type d -exec chmod 2770 -- {} +
(-- to prevent name starting with dash as conflict)

Find specific string from directories
grep -Ril "moment.js" /var/www/html/wiki/lib/plugins/edittable

Change SFTP default upload permission (umask)
 Ordered List ItemUpdated /etc/ssh/sshd_config with Subsystem sftp /usr/lib/openssh/sftp-server -u XXX
 sudo systemctl restart ssh

SSH key login as root
https://help.rapidseedbox.com/en/articles/5999160-how-to-create-an-ssh-key-pair-and-use-it-to-login-as-root-enable-direct-root-ssh-login

WINSCP allow sudo command with normal account
https://winscp.net/eng/docs/faq_su

Mount SMB v3 from Windows
 sudo apt install smbclient cifs-utils
  mkdir /TARGETFOLDER 
  Create .credential file (“.” stand for hidden file), content: username=XXX password=XXX (separate line).
 CHMOD .credential file to 600
 sudo vi /etc/fstab 

//XX.XX.XX.XX/SharedFolder /TARGETFOLDER cifs vers=3.0,credentials=.credential,uid=userid,gid=groupid,iocharset=utf8 0 0

 sudo systemctl daemon-reload

Mount drive command: sudo mount /TARGETFOLDER

Force unmount drive command: sudo umount -l /TARGETFOLDER

Turn off case sensitive from SSH

sudo nano /etc/inputrc

set completion-ignore-case on
set show-all-if-ambiguous On

restart Terminal

Add display resolution

xrandr --newmode "1920x1080_60.00"  173.00  1920 2048 2248 2576  1080 1083 1088 1120 -hsync +vsync
xrandr --addmode DP-3 1920x1080_60.00
xrandr --output DP-3 --mode "1920x1080_60.00"

check processor frequency / temperature
frequency

cat /proc/cpuinfo |grep "cpu MH"

temperature

sensors