diff --git a/install_ubuntu_quick.sh b/install_ubuntu_quick.sh
index 3eaf7b63818ff2b89d7ba37d9debadcc59d69695..971957c47b6871f5f114c8fa56ac8281e4239196 100644
--- a/install_ubuntu_quick.sh
+++ b/install_ubuntu_quick.sh
@@ -16,7 +16,7 @@ emacs --version
 sudo apt remove --autoremove emacs emacs-common
 
 # Installs Emacs 27.
-sudo apt-get install emacs27 emacs27-common -y
+sudo apt-get install emacs28 emacs28-common -y
 emacs --version
 
 #-----------------------------------------------------------------------
@@ -34,6 +34,10 @@ git config --global user.name "Walmes Zeviani" &&
     git config --global merge.tool meld &&
     git config --list
 
+# Create public keys.
+ssh-keygen -t rsa -C "walmes@ufpr.br"
+cat ~/.ssh/id_rsa.pub
+
 #-----------------------------------------------------------------------
 # Doom-emacs.
 
@@ -105,13 +109,11 @@ gpg --keyserver hkp://keyserver.ubuntu.com:80 \
 gpg -a --export E298A3A825C0D65DFD57CBB651716619E084DAB9 | \
     sudo apt-key add -
 
-sudo apt-get update
+sudo apt-get update -y
 sudo apt-get install r-base -y
 
 # Components needs for RStudio.
 sudo apt-get install \
-    libclang-10-dev \
-    libclang-common-10-dev \
     libclang-dev \
     -y
 
@@ -225,9 +227,9 @@ sudo apt-get install torbrowser-launcher -y
 # Shutter.
 
 # sudo add-apt-repository --remove ppa:linuxuprising/shutter
-sudo add-apt-repository ppa:linuxuprising/shutter -y
-sudo apt-get update
-sudo apt-get install shutter -y
+sudo add-apt-repository ppa:linuxuprising/shutter -y && \
+    sudo apt-get update && \
+    sudo apt-get install shutter -y
 
 #-----------------------------------------------------------------------
 # Xournal++, para anotações.
@@ -314,8 +316,6 @@ sudo apt install -y lsp-plugins
 # sudo apt-get install swh-plugins ladspa-sdk python-gtk2 python-glade2 python-gobject python-gnome2
 # pulseaudio-equalizer-gtk
 
-
-
 #-----------------------------------------------------------------------
 # Visual Studio Code (aka VS Code).