Find the *.oga files here
/usr/share/sounds/Yaru/stereo/

Technical notes, and other ideas.
Find the *.oga files here
/usr/share/sounds/Yaru/stereo/
When using menu libre you want it to pickup the new application settings, right away.
#!/bin/bash
# Show a notification that the app is launching
notify-send "Refreshing ~/.local/share/applications/"
update-desktop-database ~/.local/share/applications/
GUI Text Search Tool
sudo apt install searchmonkey
If the application icon is missing, try the following:
sudo nano /usr/share/applications/searchmonkey.desktop
Use the following image, verify it exists.
/usr/share/icons/hicolor/48x48/apps/searchmonkey.png
Refer: https://www.baeldung.com/linux/pem-ppk-keys
sudo apt-get install -y putty-tools
Private
puttygen id_rsa.pem -O private -o id_rsa_private.ppk
Public
puttygen id_rsa.pem -O public -o id_rsa_public.ppk
It looks like we do not have customized .bashrc files on the AWS instance of Ubuntu. Instead, you can create a customized script to setup your defaults.
Refer: https://serverfault.com/questions/491585/is-there-a-global-bash-profile-for-all-users-on-a-system
Refer: https://bash.cyberciti.biz/guide//etc/profile.d
sudo su -
nano /etc/profile.d/mlr.sh
Sample Content
PS1="\n# ${USER}@${HOSTNAME}\n# \${PWD}\n$ "
alias ll='ls -l' 2>/dev/null
alias l.='ls -d .*' 2>/dev/null
Refer: https://aws.amazon.com/premiumsupport/knowledge-center/connect-to-ubuntu-1604-windows/
Refer: https://www.crmarsh.com/aws/
To have your account use bash, you need to update your account:
$ sudo vi /etc/passwd
You will need at the end - ::/home/mruckman:/bin/bash
This is both your home directory and also the :/bin/bash says to use bash