| Application | Description |
|---|---|
| aseprite | Pixel art tool |
| blueman | Bluetooth manager |
| evince | Document viewer |
| gnome-books | Ebook reader |
| gnome-disks | Tool to manage storage devices |
| heroic | Epic Games Store launcher |
| itch | itch.io game launcher |
| lutris | Wine, Steam, etc game launcher |
| obs | Tool to record video and perform live streaming |
| pcmanfm | File manager |
| piper | Configure mouse DPI |
| retroarch | ROM game and emulator launcher |
| seahorse | Tool to manage the Gnome keyring |
| solaar | Manage Logitech unifying receivers and devices |
| usb-creator-gtk | Tool to write ISO files to USB storage devices |
| Application | Description |
|---|---|
| Betterlockscreen | Lockscreen for X11 |
| BSPWM | Tiling window manager for X11 (ansible-role-bspwm) |
| ElKowars wacky widgets (EWW) | Bar for X11 and Wayland |
| Ly | Display manager |
| River WM | Dynamic tiling Wayland compositor |
| Rofi | Window switcher, application launcher and dmenu replacement |
| Stalonetray | System tray for X11 |
| Sway WM | i3-compatible Wayland compositor |
| Waybar | Bar for Wayland |
| Command | Description |
|---|---|
| atop | AT Computing's System & Process Monitor |
| htop | ncurses-based process viewer for Linux |
| intel_gpu_top, nvtop, radeontop | Monitor graphics devices |
| iostat | CPU and input/output statistics for devices and partitions |
| lsof | Lists on its standard output file information about files opened by processes |
| mtr | Combines the functionality of the traceroute and ping programs in a single network diagnostic tool |
| nethogs | Net top tool grouping bandwidth per process |
| netstat | Print network connections, routing tables, interface statistics, masquerade connections, and multicast memberships |
| pidstat | Monitor individual tasks currently being managed by the Linux kernel |
| powertop | Power consumption and power management diagnosis tool |
| sensors | Print temperature sensors information |
| vmstat | Report virtual memory statistics |
grep -li ${SEARCH_TEXT} /usr/share/applications/*.desktop
# or
dpkg -l | grep ${SEARCH_TEXT}
# eg.
$ grep -li music /usr/share/applications/*.desktop
/usr/share/applications/spotify.desktop
sudo apt-get install apt-file
apt-file update
apt-file search ${pattern}
Edit ~/.config/mimeapps.list:
[Default Applications]
text/html=firefox.desktop
application/pdf=org.gnome.Evince.desktop
Associate PDFs with Evince:
xdg-mime default org.gnome.Evince.desktop application/pdf
sudo apt purge evolution* language-selector-gnome whoopsie*
# Remove Snap
sudo rm -rf /var/cache/snapd/
sudo apt autoremove --purge snapd gnome-software-plugin-snap speech-dispatcher
sudo apt-mark hold snapd
rm -rf ~/snap
# Free up disk-space
sudo apt autoremove && sudo apt clean
sudo sed -i 's/^\(Prompt\s*=\s*\)\w\+/\1normal/g' /etc/update-manager/release-upgrades
sudo do-release-upgrade
sudo sed -i 's/^\(Prompt\s*=\s*\)\w\+/\1never/g' /etc/update-manager/release-upgrades
echo -n "" > /var/lib/ubuntu-release-upgrader/release-upgrade-available
Use dconf watch / to monitor changes.
Using dconf:
@au [] specifies the type of the empty array (which would not parse otherwise)
# Remove language switcher keyboard shortcut
dconf write /org/gnome/desktop/wm/keybindings/switch-input-source '@au []'
# Disable "Intelligent Input Bus Daemon"
dconf write /org/gnome/settings-daemon/plugins/keyboard/active false
# Restart (replace) ibus-daemon
ibus-daemon -rd
Using dconf-editor:
apt install dconf-editor
dconf-editor
# Navigate to: /org/gnome/desktop/wm/keybindings/switch-input-source
# Set to []
Force reboot an unresponsive system.
ALT + SHIFT + PRINT SCR + R E I S U B
unRaw (take control of keyboard back from X),
tErminate (send SIGTERM to all processes, allowing them to terminate gracefully),
kIll (send SIGKILL to all processes, forcing them to terminate immediately),
Sync (flush data to disk),
Unmount (remount all filesystems read-only),
reBoot.
$ echo '
//$HOSTNAME/stuff /media/stuff cifs defaults,guest,ro 0 0' | sudo tee -a /etc/fstab
$ sudo env "PATH=$PATH" command
$ echo '
fs.file-max = 100000
fs.inotify.max_user_watches = 524288' | sudo tee -a /etc/sysctl.conf
$ sudo sysctl -pf
timedatectl set-ntp false
timedatectl set-time "2016-06-20 10:00:00"
timedatectl set-time "10:00:00"
timedatectl set-ntp true
hdparm -I /dev/sdX (result: Security:not enabled)
hdparm --user-master u --security-set-pass PasSWorD /dev/sdX
hdparm -I /dev/sdX (result: Security:enabled)
hdparm --user-master u --security-erase PasSWorD /dev/sdX
hdparm -I /dev/sdX (result: Security:not enabled)
Grap mouse and keyboard input
CTRL + SHIFT + C
sudo debconf-show ${packageName}
# or
sudo debconf-get-selections|grep -i ${packageName}
- LiveCdRecovery - Chroot an Ubuntu ISO on a USB drive
mount /dev/sda1 /mnt \
mount --bind /dev /mnt/dev \
mount --bind /proc /mnt/proc \
mount --bind /sys /mnt/sys \
chroot /mnt
grub-install /dev/sda
umount /mnt/proc/ /mnt/dev /mnt/sys /mnt
This error occurs when running apt update on an unsupported version of Ubuntu.
sudo sed -i -e 's/\([a-z]*.\?\)\?archive.ubuntu.com\|security.ubuntu.com/old-releases.ubuntu.com/g' /etc/apt/sources.list
- Permit access to the symlink source by editing
/etc/apparmor.d/local/usr.bin.redshift:
owner @{HOME}/PATH_TO_VAULT/redshift.conf r,
- Restart AppArmor:
sudo systemctl reload apparmor
This can be caused by accessing the "Sound" section/tab of Gnome Control Center on an installation provisioned by ansible-workstation.
rm -rf .config/dconf/
RSA SHA-1 is deprecated starting in Ubuntu 22.04. Re-enable it by adding the following
to /etc/ssh/ssh_config:
Host *
# ...
PubkeyAcceptedKeyTypes +ssh-rsa