run .sh file by double clicking on them

#using gsettings (source: http://askubuntu.com/a/378473/502875)
gsettings set org.gnome.nautilus.preferences executable-text-activation ask
#using dconf (source: http://askubuntu.com/a/421537/502875)
dconf write /org/gnome/nautilus/preferences/executable-text-activation "'launch'"

Ubunut side panel pin or favourite

#get pin item
gsettings get com.canonical.Unity.Launcher favorites

#pin allpication(s)
gsettings set com.canonical.Unity.Launcher favorites "['application://firefox.desktop', 'unity://running-apps', 'application://evolution.desktop', 'unity://devices']"

#remove all pin
gsettings set com.canonical.Unity.Launcher favorites "[]"

(source: http://askubuntu.com/a/171723)

OR:

#get pin item
dconf read /org/gnome/shell/favorite-apps

#pin allpication(s)
dconf write /org/gnome/shell/favorite-apps "['org.gnome.Nautilus.desktop', 'chromium-browser.desktop']"

#remove all pin
dconf write /org/gnome/shell/favorite-apps "[]"

source: https://askubuntu.com/a/1082279

Additional Workspaces in GNOME

#get n workspaces vertically
gsettings set org.compiz.core:/org/compiz/profiles/unity/plugins/core/ vsize n
#get n workspaces horizontally
gsettings set org.compiz.core:/org/compiz/profiles/unity/plugins/core/ hsize n

(source: http://askubuntu.com/a/370048)

remove Workspace Switcher launcher icon from the Unity launcher

gsettings get com.canonical.Unity.Launcher favorites
#should returen something like
#['application://nautilus.desktop', 'application://chromium-browser.desktop', 'application://ubuntu-software-center.desktop', 'application://ubuntuone-installer.desktop', 'application://ubuntu-amazon-default.desktop', 'application://UbuntuOneMusiconeubuntucom.desktop', 'application://gnome-control-center.desktop', 'unity://running-apps', 'unity://expo-icon', 'unity://devices']

#copy the whole string and remove 'unity://expo-icon' and give the following command, don't forget the ""
gsettings set com.canonical.Unity.Launcher favorites "['application://nautilus.desktop', 'application://chromium-browser.desktop', 'application://ubuntu-software-center.desktop', 'application://ubuntuone-installer.desktop', 'application://ubuntu-amazon-default.desktop', 'application://UbuntuOneMusiconeubuntucom.desktop', 'application://gnome-control-center.desktop', 'unity://running-apps', 'unity://devices']"

(source: https://askubuntu.com/a/286344)

always show menu items in Unity

#switch on:
gsettings set com.canonical.Unity always-show-menus true
#switch off:
gsettings set com.canonical.Unity always-show-menus false

remove the switch user account option in Unity

gsettings set com.canonical.indicator.session user-show-menu false

lock screen

#gnome gnome-screensaver-command -l #xfce xflock4

chnage background picture

gsettings set org.gnome.desktop.background picture-uri "file:///location/file.extension"

see month and date on main title bar

::

gsettings set org.gnome.desktop.interface clock-show-date true

উবুন্টু বাংলাদেশ [Ubuntu Bangladesh]

hide user from gear button

gsettings set com.canonical.indicator.session user-show-menu false

disable screen lock

To disable screen lock:

gsettings set org.gnome.desktop.lockdown disable-lock-screen true

To enable:

gsettings set org.gnome.desktop.lockdown disable-lock-screen false

(source: https://askubuntu.com/a/1000458)

logout a user

for 11.10 and above run:

gnome-session-quit

in 60 seconds the user will be logged out. https://askubuntu.com/a/15796

However, if you are in a ssh connection this will not work so use:

sudo pkill -u $username

https://askubuntu.com/a/132351

blank screen delay

gsettings set org.gnome.desktop.session idle-delay $DELAY_IN_SECONDS

source: https://askubuntu.com/a/1042685

see all option for gsettings

gsettings range $SCHEMA $KEY

source: https://askubuntu.com/a/1030558

take screenshot

gnome-screenshot -d 10

This would take a screenshot with 10 seconds delay.

source: https://askubuntu.com/a/194470

Ubuntu 18.04 touchpad right click not working

Ubuntu 18.04 touchpad right click doesn't not working when the right touchpad button is clicked because the default behavior is changed to two-finger click (just tap anywhere with two fingers). To change this to right touchpad button:

gsettings set org.gnome.desktop.peripherals.touchpad click-method areas

source: https://askubuntu.com/a/1029445 --> https://www.omgubuntu.co.uk/2018/04/things-to-do-after-installing-ubuntu-18-04 [step 5]

see the changes done with Gnome Tweak Tool or Tweaks

to see the changes done with Gnome Tweak Tool or Tweaks:

dconf watch /

Now changes done in Tweaks will be show in the terminal.

source: https://askubuntu.com/a/971577

Source