Linux
high power use
docker: sudo ifconfig docker0 down
wired: sudo ifconfig enp0s25 down
Restoring GRUB
First, fdisk -l to identity main drive on which to install Grub. Replace sda1 with your main drive:
sudo mount /dev/sda1 /mnt sudo mount --bind /dev /mnt/dev sudo mount --bind /proc /mnt/proc sudo mount --bind /sys /mnt/sys sudo chroot /mnt update-initramfs -u update-grub
reboot
Connect to wifi with cmd line
You can use Network Manager's command line tool called nmcli.
- Use nmcli dev wifi to locate the access point(AP) name.
- Use nmcli device wifi connect APname password
Also, nmtui
Set capslock as mod key in i3
create ~/.Xmodmap
clear Lock keycode 66 = Hyper_L add mod4 = Hyper_L
then run
xmodmap ~/.Xmodmap
Change volume from command line
amixer -q -D pulse sset Master 10%+ amixer -q -D pulse sset Master 10%- amixer -q -D pulse sset Master toggle
Steam auto-mount USB storage partition in linux
to figure out volume: sudo fdisk -l /etc/fstab: /dev/sdb /media/mohd/7E8A-664F vfat defaults,uid=1000,umask=007 0 0
restart snapd service
systemctl start snapd.service
mount: target is busy
umount -l /PATH/OF/BUSY-DEVICE
mount bind
mount --bind /media/tc1/folder /home/dvad/home
mount refresh fstab
sudo mount -a
list vulnerabilities
grep . /sys/devices/system/cpu/vulnerabilities/*
bootable usb
sudo dd bs=4M if=path/to/input.iso of=/dev/sd<?> conv=fdatasync status=progress
example:
sudo dd bs=4M if=linuxmint-19.3-cinnamon-64bit.iso of=/dev/sdb conv=fdatasync status=progress
disable middle mouse button on thinkpad trackpads
xinput command lists the input devices:
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ SynPS/2 Synaptics TouchPad id=11 [slave pointer (2)]
⎜ ↳ TPPS/2 IBM TrackPoint id=12 [slave pointer (2)]
⎣ Virtual core keyboard id=3 [master keyboard (2)]
↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)]
↳ Power Button id=6 [slave keyboard (3)]
↳ Video Bus id=7 [slave keyboard (3)]
↳ Sleep Button id=8 [slave keyboard (3)]
↳ Integrated Camera: Integrated C id=9 [slave keyboard (3)]
↳ AT Translated Set 2 keyboard id=10 [slave keyboard (3)]
↳ ThinkPad Extra Buttons id=13 [slave keyboard (3)]
We are interested in the SynPS/2 Synaptics TouchPad device, which has an id of 11.
xinput get-button-map 11
1 2 3 4 5 6 7
Here the 2 stands for our middle mouse button. We can get rid of it like so:
xinput set-button-map 11 1 0 3 4 5 6 7
remove unused packages
sudo apt autoremove --purge
add ppa in ubuntu
eg. sudo add-apt-repository ppa:alexmurray/indicator-sensors
remove ppa in ubuntu
sudo add-apt-repository --remove ppa:alexmurray/indicator-sensors
remove epiphany web app
about:applications
mount usb
find the usb device identifier
sudo fdisk -l
Then mount:
udisksctl mount -b device_name
eg
udisksctl mount -b /dev/sdb1
run update-grub from live-cd
mount the linux system partition
sudo mount /dev/sda5 /mnt
mount these:
sudo mount --bind /dev /mnt/dev
sudo mount --bind /sys /mnt/sys
sudo mount --bind /proc /mnt/proc
chroot:
sudo chroot /mnt
sudo update-grub
https://askubuntu.com/questions/145241/how-do-i-run-update-grub-from-a-livecd
create .desktop file
gnome-desktop-item-edit --create-new ~/.local/share/applications