dichotomies/ubuntu.md

## ubuntu.md

      
    Raw
  

              ubuntu.md
            
          
    Setup

Saving settings before Reinstalling Ubuntu

dconf has its own mechanism to dump the configuration with the command dconf dump /.


better: before making changes in keyboard settings, start monitoring with dconf watch /, note changes and load them later

Remapping Alt & Control

write to ~/.Xmodmap

clear control
clear mod1
keycode 37 = Alt_L Meta_L
keycode 64 = Control_L
add control = Control_L Control_R
add mod1 = Alt_L Meta_L


load these settings with xmodmap .Xmodmap

Remapping standard Hotkeys, e.g. Minimize
/org/gnome/desktop/wm/keybindings/minimize
  ['<Primary>e']

/org/gnome/desktop/wm/keybindings/close
  ['<Primary>q']

/org/gnome/desktop/wm/keybindings/maximize
  ['<Primary><Shift>e']

/org/gnome/settings-daemon/plugins/media-keys/screensaver
  '<Super>l'

/org/gnome/settings-daemon/plugins/media-keys/area-screenshot
  '<Primary><Shift>dollar'

/org/gnome/settings-daemon/plugins/media-keys/home
  '<Super>f'

/org/gnome/desktop/wm/keybindings/switch-input-source
  ['']

/org/gnome/settings-daemon/plugins/media-keys/search
  '<Super>space'

/org/compiz/integrated/show-hud
  ['']

# change icon size in task bar

/org/compiz/profiles/unity/plugins/unityshell/icon-size
  32

/org/compiz/profiles/unity/plugins/expo/y-bottom-offset
  48

Remapping Alt Tab to Control Tab
dconf write /org/compiz/profiles/unity/plugins/unityshell/alt-tab-forward "'<Control>Tab'"

Network: Shared Folders

Get all available Domains in Network


run smbtree after installing it
it returns something like

WORKGROUP
	\\WDFN30007029A  		Samba 4.2.4-40.1-3678-SUSE-oS13.2-x86_64
		\\WDFN30007029A\IPC$           	IPC Service (Samba 4.2.4-40.1-3678-SUSE-oS13.2-x86_64)
		\\WDFN30007029A\home           	
	\\LU654656       		lu654656 server (Samba, Ubuntu)
		\\LU654656\PDF            	PDF
		\\LU654656\IPC$           	IPC Service (lu654656 server (Samba, Ubuntu))
		\\LU654656\print$         	Printer Drivers

Specific: Get IPs for mounted folders


if connected folders in root, then cd / and df will output something like:

/dev/sda1                                              504740   107973    396767  22% /boot
d066124@lu33985079.local:/home/d066124/Desktop/sles 851853796  5080372 803478704   1% /home/d066124/mnt/ubuntu
10.68.90.187:/area51/makes                           67108864 41069568  26039296  62% /area51/makes


in this case, area51 can be accessed via 10.68.90.187

Mount server with its IP and smbclient


after having acquired the IP, use dnslookup to get domain or IP of a host via DNS: nslookup 10.68.90.187

Server:		10.17.122.10
Address:	10.17.122.10#53

187.90.68.10.in-addr.arpa	name = ld9664-nfs.wdf.sap.corp.
187.90.68.10.in-addr.arpa	name = area51.wdf.sap.corp.


install smb and smbclient - both necessary for sharing and accessing shared folders/files in a network


Etc

Unity and Compiz

both are preinstalled on Ubuntu 16
Compiz settings overwrite Unity settings

therefore it's not possible to remap AltTab (application-switcher) in general System Settings


Change Compiz settings with CCSM

in order to change specific keys, the Compiz config has to be changed
if the paths to the config settings are known, then the settings can be changed with dconf write
otherwise use compizconfig-settings-manager (CCSM)

for replacing original AltTab behaviour search in CCSM for Ubuntu Unity Plugin
go to switcher
edit Key to start the Switcher, e.g. to Ctrl Tab


Monitor changes written to System Settings

dconf watch / monitors all changes made to system files in root directory / and results in

/org/compiz/profiles/unity/plugins/unityshell/alt-tab-forward
  '<Control>Tab'

Overwrite System Settings with dconf

example problem: remapping alt tab of compiz:

dconf write /org/compiz/profiles/unity/plugins/unityshell/alt-tab-forward "'<Control>Tab'"


it's "'<Control>Tab'" and not "'[<Control>Tab]'" !