Install ZSH with most used plugins and tmux

README.md

@@ -18,6 +18,7 @@ Login as root and type:
 	- adjust SSH daemon features
 	- 3G/4G LTE modem management
 	- run apt update and upgrade
+	- toogle BASH/ZSH with [Oh My ZSH](https://ohmyz.sh/) and [tmux](https://en.wikipedia.org/wiki/Tmux)
 	- toggle desktop and login manager (desktop builds)
 	- adjusting the display resolution (some boards)
 	- enabling read only root filesystem (Ubuntu)

debian-config-jobs

@@ -746,6 +746,75 @@ function jobs ()
 		fi
 	;;
 
+	# ZSH
+	#
+	"BASH" )
+		# change shell for root
+		chsh -s /bin/bash
+		add_choose_user
+		if [ -n "$CHOSEN_USER" ]; then
+			chsh -s /bin/bash $CHOSEN_USER
+		fi
+		# cleanup
+		rm -rf /etc/oh-my-zsh /etc/skel/.zshrc /etc/skel/.oh-my-zsh
+		rm -rf /root/{.zshrc,.oh-my-zsh}
+		# and for selected normal user
+		add_choose_user
+		if [ -n "$CHOSEN_USER" ]; then
+			rm -rf /home/$CHOSEN_USER/{.zshrc,.oh-my-zsh}
+		fi
+		# change shell for future users
+		sed -i "s/^SHELL=.*/SHELL=\/bin\/bash/" /etc/default/useradd
+		# remove crontab
+		crontab -l | grep -v oh-my  | crontab -
+		dialog --backtitle "$BACKTITLE" --title "Info" --colors --msgbox "\nYour default shell was switched to: \Z1BASH\Z0\n\nPlease logout & login from this session!" 9 47
+	;;
+
+
+	# ZSH
+	#
+	"ZSH" )
+		if ! is_package_manager_running; then
+		if ! check_if_installed zsh ; then
+			debconf-apt-progress -- apt-get update
+			debconf-apt-progress -- apt-get install -y zsh tmux
+		fi
+		rm -rf /etc/oh-my-zsh
+		git clone --quiet https://github.com/robbyrussell/oh-my-zsh.git /etc/oh-my-zsh
+		cp /etc/oh-my-zsh/templates/zshrc.zsh-template /etc/skel/.zshrc
+		mkdir -p /etc/skel/.oh-my-zsh/cache
+		# change shell for future users
+		sed -i "s/^SHELL=.*/SHELL=\/usr\/bin\/zsh/" /etc/default/useradd
+		# we have common settings
+		sed -i "s/^export ZSH=.*/export ZSH=\/etc\/oh-my-zsh/" /etc/skel/.zshrc
+		# user cache
+		sed -i "/^export ZSH=.*/a export ZSH_CACHE_DIR=~\/.oh-my-zsh\/cache" /etc/skel/.zshrc
+		# define theme
+		sed -i 's/^ZSH_THEME=.*/ZSH_THEME="risto"/' /etc/skel/.zshrc
+		# remove default plugins
+		sed -i '/^  git.*/ d' /etc/skel/.zshrc
+		sed -i "/^plugins=.*/a git git-extras debian tmux screen history extract colorize web-search docker" /etc/skel/.zshrc
+		# change shell for root
+		chsh -s $(grep /zsh$ /etc/shells | tail -1)
+		# copy cache directory
+		cp -R --attributes-only /etc/skel/.oh-my-zsh /root/.oh-my-zsh
+		cp /etc/skel/.zshrc /root/.zshrc
+		# and for selected normal user
+		add_choose_user
+		if [ -n "$CHOSEN_USER" ]; then
+			chsh -s $(grep /zsh$ /etc/shells | tail -1) $CHOSEN_USER
+			# copy cache directory
+			cp -R --attributes-only /etc/skel/.oh-my-zsh /home/$CHOSEN_USER/.oh-my-zsh
+			cp /etc/skel/.zshrc /home/$CHOSEN_USER/.zshrc
+			chown -R ${CHOSEN_USER}:${CHOSEN_USER} /home/${CHOSEN_USER}/{.zshrc,.oh-my-zsh}
+		fi
+		# add a cronjob to update oh-my-zsh once per month
+		(crontab -l 2>/dev/null; echo "0 0 1 * * cd /etc/oh-my-zsh ; git -q pull origin master >/dev/null 2>/dev/null") | crontab -
+		dialog --backtitle "$BACKTITLE" --title "Info" --colors --msgbox "\nYour default shell was switched to: \Z1ZSH\Z0\n\nPlease logout & login from this session!" 9 47
+		fi
+	;;
+
+
 	# Firmware update
 	#
 	"Firmware" )
@@ -806,7 +875,7 @@ function jobs ()
 			dialog --title " Desktop is enabled and running " --backtitle "$BACKTITLE" \
 			--yes-label "Stop" --no-label "Cancel" --yesno "\nDo you want to stop and disable this service?" 7 50
 			exitstatus=$?;
-			if [[ $exitstatus = 0 ]]; then 
+			if [[ $exitstatus = 0 ]]; then
 				service nodm stop >/dev/null 2>&1 && sed -i "s/^NODM_ENABLED=.*/NODM_ENABLED=false/" /etc/default/nodm
 				service lightdm stop >/dev/null 2>&1 && systemctl disable lightdm.service >/dev/null 2>&1
 			fi

debian-config-submenu

@@ -72,6 +72,14 @@ while true; do
 
 	LIST+=( "SSH" "Reconfigure SSH daemon" )
 	LIST+=( "Firmware" "Run apt update & apt upgrade" )
+
+	if [[ "$SHELL" != "/bin/bash" ]]; then
+		LIST+=( "BASH" "Revert to stock BASH shell" )
+		else
+		LIST+=( "ZSH" "Install ZSH with most used plugins and tmux" )
+	fi
+
+
 	[[ "$LINUXFAMILY" = sun*i && "$BRANCH" = "default" && \
 	-n $(bin2fex </boot/script.bin 2>/dev/null | grep -w "hdmi_used = 1") ]] && LIST+=( "Display" "set the display resolution" )
 	[[ "$LINUXFAMILY" = odroidc* && "$BRANCH" = "default" ]] && LIST+=( "Display" "set the display resolution" )