Ubuntu Tweak

Tweaks that every Ubuntu/Linux user needs
Better experience of using Ubuntu

Author: `bluelul.com`

Increase Wubi Disk

Run command directly on Wubi Linux OS

sudo dd if=/dev/zero bs=1MiB of=/host/ubuntu/disks/root.disk conv=notrunc oflag=append count=2048
sudo losetup -c /dev/loop0
sudo resize2fs /dev/loop0

Restart computer to fully update

Disable Linux time affecting Window time

timedatectl set-local-rtc 1 --adjust-system-clock

Hot apply bashrc setting without opening new terminal

. ~/.bashrc

Disable Tab auto-completion case-sensitive in Bash

echo set completion-ignore-case on | sudo tee -a /etc/inputrc

Close all terminals and reopen, or just Hot apply bashrc

Detailed list file command

echo alias lah=\'ls -lah\' >> ~/.bashrc

Open new terminal and type lah, or just Hot apply bashrc

Colorize headline of Root User Bash Prompt Terminal

Run one of these theme template setting command in terminal

Ubuntu default theme (for normal user)

echo "PS1='\${debian_chroot:+(\$debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\\$ '" >> ~/.bashrc

Root theme (for root user)

sudo su
echo "PS1='\${debian_chroot:+(\$debian_chroot)}\[\033[01;31m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\\$ '" >> /root/.bashrc

Docker theme (normally as root user)

echo "PS1='\${debian_chroot:+(\$debian_chroot)}\[\033[01;44m\] \u@\h \[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\\$ '" >> /root/.bashrc

Conda theme

conda config --set env_prompt "\\[\\033[01;42m\\] {default_env} \\[\\033[0m\\]"
conda config --set auto_activate_base false

Then open new terminal to apply changes, or just Hot apply bashrc

Customize theme

Parts of a theme:
PS1='${debian_chroot:+($debian_chroot)} \[\033[01;44m\] \u@\h \[\033[00m\] : \[\033[01;34m\] \w \[\033[00m\] \$ '
One color code affects the next text code
Special text code:

  \u : user
  \h : host
  \w : short path
  \W : full path
  \T : time in hh:mm:ss
  \@ : time in hh:mm AM/PM
  \n : new line
  \j : jobs

Color code: in format \[\033[ decoration_part type_part color_part m\]

Decoration_part: optional, remember the ; tail

Normal : 00; or 06; or leave blank
Bold : 01;
Darker : 02;
Italic : 03;
Underline : 04;
Blink : 05;
Colored bachground with invisible text : 06;
Invisible : 08;
Strikethrough : 09;

Type_part: compulsory

Reset : 0
Color in text : 3
Color in background with white text : 4
High intensity (brighter) color in text : 9
High intensity (brighter) color in background with white text : 10

Color_part: compulsory

Black : 0
Red : 1
Green : 2
Yellow : 3
Blue : 4
Purple : 5
Cyan : 6
White : 7

Install Nvidia Driver

sudo ubuntu-drivers autoinstall

Check driver has installed successfully by command nvidia-smi

Notify after long command finished in terminal

install undistract-me and config in bashrc

sudo apt-get install undistract-me &&
sudo tee -a ~/.bashrc > /dev/null <<EOT
# Notify after long command (execute over 10 seconds) finished
if ! [ -z "\$BASH_VERSION" -o -z "\$PS1" -o -n "\$last_command_started_cache" ]; then
  . /usr/share/undistract-me/long-running.bash
  notify_when_long_running_commands_finish_install
fi
EOT

close all terminals
open a terminal and test by running this command then switching to another window

sleep 11

Renaming files in a folder to sequential numbers

Sorted in order of modification, later files with later indexes
Ignores directories - and not recursive
Pads indexes
Maintains original extension.

ls -1prt | grep -v "/$" | cat -n | while read n f; do mv -n "${f}" "$(printf "%04d" $n).${f##*.}"; done

Convert png, webp images to jpg

png to jpg

for i in *.png; do name=`echo "$i" | cut -d'.' -f1`; echo "$name"; convert "$i" -background white -flatten "${name}.jpg"; done

webp to jpg

for i in *.webp; do name=`echo "$i" | cut -d'.' -f1`; echo "$name"; convert "$i" "${name}.jpg"; done

Multiscreen terminal

Install

sudo apt install terminator

Deepblue color profile for terminator

Run this command first:

cat >> ~/.config/terminator/config

Paste all this text (with exactly spaces) to the waiting new line in terminator

  [[Deepblue]]
    background_color = "#002b36"
    background_darkness = 0.96
    background_type = transparent
    cursor_color = "#aaaaaa"
    foreground_color = "#b2c7cb"
    palette = "#2e3436:#cc0000:#719704:#c4a000:#347da4:#75507b:#06889a:#d3d7cf:#555753:#ef2929:#a6ca3c:#fce94f:#72abcf:#ad7fa8:#34b5e2:#eeeeec"
    scrollback_infinite = True

Press Ctrl-C to finish
Right-click on terminator -> Preferences -> Layouts -> set the Profile of default's terminal child1 to Deepblue

"Open with ..." right click menu on Nautilus

Install

Ubuntu 19.04 and newer

sudo apt install filemanager-actions nautilus-actions

Config

Run fma-config-tool
```
fma-config-tool &
```
Make actions to appear in the top level of the context menu:
- Go to FileManager-Actions Configuration Tool > Preferences > Runtime Preferences
- Uncheck the Create a root FileManager-Actions menu
- Optional: select Items ordering as Manual order
- Press OK
Add menu items:
- Method 1:
  - Download all files in this folder
  - In fma-config-tool, go to Tools > Import assistant, follow GUI instructions to import downloaded config files
- Method 2:
  - Manually create new menu item as below:

Action > Context label	Action > Display item in selection.../location...	Command > Path	Command > Parameters
Open with _Terminator	no / yes	/usr/bin/terminator	--working-directory=%d/%b
Open with _Sublime Text	yes / yes	/usr/bin/subl	%d/%b
Open with Sublime _Merge	no / yes	/snap/bin/smerge	%d/%b
Open with VS _Code	yes / yes	/snap/bin/code	%d/%b

Apply

Restart nautilus:
```
nautilus -q
nautilus &
```
Done!

Uninstall

sudo apt purge filemanager-actions*

Lighter and stronger File Manager

Advantages of pcmanfm over nautilus:
- Full path in address bar
- Go to parent folder button
- Folder/file property status bar
- Create new file in right-click menu
- Copy full path of file in right-click menu
- Search file or content of file with regex support
- Split screen mode
- Load all thumbnail of files in folder
- Load file faster
Install pcmanfm
```
sudo apt install pcmanfm
```

Config pcmanfm as default file manager, instead of nautilus

sudo sed -i 's/org.gnome.Nautilus/pcmanfm/g' /usr/share/applications/defaults.list

Reverse (back to nautilus)

sudo sed -i 's/pcmanfm/org.gnome.Nautilus/g' /usr/share/applications/defaults.list

Restart computer to apply changes

Disk Usage Analyzer CLI

sudo apt install ncdu

Disk Speed Benchmark GUI

CrystalDiskMark alternative for Ubuntu

Install

sudo add-apt-repository ppa:jonmagon/kdiskmark

sudo apt update

sudo apt install kdiskmark

Run
```
sudo kdiskmark
```

Save session terminal

Install tmux

sudo apt install tmux

Config tmux

sudo tee -a ~/.tmux.conf > /dev/null <<EOT
# Make mouse useful in copy mode
setw -g mode-mouse on

# Allow mouse to select which pane to use
set -g mouse-select-pane on

# Scroll History
set -g history-limit 30000

# Set ability to capture on start and restore on exit window data when running an application
setw -g alternate-screen on

# Lower escape timing from 500ms to 50ms for quicker response to scroll-buffer access.
set -s escape-time 50
EOT

Enable SSH connection

sudo apt install openssh-server
sudo ufw allow ssh

Check ssh service is up

systemctl status ssh

Show port status

sudo netstat -plunt

Copy files and folder

Check ssh connection first

ssh username@userip
# example: ssh user@192.168.1.2

Copy file

usernamex, useripx, usernamey, useripy can be omitted in local machine
If dest exists, result will be: dest/source-file
If dest does not exist, result will be: dest (as a file)

scp usernamex@useripx:/path/to/source-file usernamey@useripy:/path/to/dest

Copy folder

Use -r argument to copy folder
If dest-folder exists, result will be: dest-folder/source-folder/...
If dest-folder does not exist, result will be: dest-folder/...

scp -r usernamex@useripx:/path/to/source-folder usernamey@useripy:/path/to/dest-folder

Copy multiple files

If dest-folder exists, result will be: dest-folder/...

scp usernamex@useripx:/path/to/source-folder/* usernamey@useripy:/path/to/dest-folder

Sync folder

/path/to/source-folder/ must have trailing /
To check steps before running, add argument -n
Show sync progress and name of each file

rsync -Pharv usernamex@useripx:/path/to/source-folder/ usernamey@useripy:/path/to/dest-folder

Show total sync progress only

rsync -har --info=progress2 usernamex@useripx:/path/to/source-folder/ usernamey@useripy:/path/to/dest-folder

Scan opened SSH ports in network

sudo nmap -sS -p 22 192.168.10.0/24

Remember to change 192.168.10.0/24 into local address space on your network, e.g. 192.168.1.0/24

Scan ports of IP/Site

Scan common ports

sudo nmap -n 123.456.789.111
sudo nmap -n google.com

Scan all ports

sudo nmap -np- 123.456.789.111

Find public IP address of a machine

curl ipinfo.io

Install ngrok with run as startup

curl -O https://raw.githubusercontent.com/bluelul/ubuntuTweak/main/ngrok/install.sh
chmod +x install.sh
sudo ./install.sh <your_authtoken>

Check ngrok service is up

systemctl status ngrok

Show all saved wifi passwords

(cd /etc/NetworkManager/system-connections && sudo grep "psk=" *)

System Monitor live on Top Bar

Fully install graphic driver first

Install system monitor with graph

Only for GNOME (Ubuntu 18.04+), may lag in Unity (Ubuntu 16.04)

Run this command

sudo apt install gnome-tweaks gnome-shell-extension-system-monitor

Log out and log in
Open GNOME Tweak Tool --> Extension --> Turn on System-monitor

Install system monitor with number

Run this command

sudo apt install indicator-multiload

Run System Load Indicator --> Click the section appear in top bar --> Choose Preferences --> Indicator Items...
Option 1: Paste the below text to the first item in list if you want to use along with System-monitor extension

Mem $(size(mem.user))  Net $(speed(net.down)) | $(speed(net.up))

Option 2: Paste the below text to the first item in list if you only want to show number, not graph from System-monitor extension

Net $(speed(net.down)) | $(speed(net.up))   CPU $(percent(cpu.inuse))   Mem $(size(mem.user))

Remove cache

sudo sh -c 'rm -rf /var/lib/snapd/cache/*'
sudo rm -r ~/.cache/pip
sudo rm -rf /root/.cache/pip

Name		Name	Last commit message	Last commit date
Latest commit History 95 Commits
asset		asset
ngrok		ngrok
openwithmenu		openwithmenu
README.md		README.md
topthermal.sh		topthermal.sh

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Ubuntu Tweak

Author: bluelul.com

Increase Wubi Disk

Disable Linux time affecting Window time

Hot apply bashrc setting without opening new terminal

Disable Tab auto-completion case-sensitive in Bash

Detailed list file command

Colorize headline of Root User Bash Prompt Terminal

Install Nvidia Driver

Notify after long command finished in terminal

Renaming files in a folder to sequential numbers

Convert png, webp images to jpg

Multiscreen terminal

Install

Deepblue color profile for terminator

"Open with ..." right click menu on Nautilus

Install

Config

Apply

Uninstall

Lighter and stronger File Manager

Disk Usage Analyzer CLI

Disk Speed Benchmark GUI

Save session terminal

Enable SSH connection

Show port status

Copy files and folder

Check ssh connection first

Copy file

Copy folder

Copy multiple files

Sync folder

Scan opened SSH ports in network

Scan ports of IP/Site

Find public IP address of a machine

Install ngrok with run as startup

Show all saved wifi passwords

System Monitor live on Top Bar

Install system monitor with graph

Install system monitor with number

Remove cache

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Author: `bluelul.com`