Update debian11_setup.sh

setup/debian11_setup.sh

@@ -1,10 +1,9 @@
 #!/usr/bin/env bash
 
-# Setup script environment
+set -o errexit
-set -o errexit  #Exit immediately if a pipeline returns a non-zero status
+set -o errtrace
-set -o errtrace #Trap ERR from shell functions, command substitutions, and commands from subshell
+set -o nounset
-set -o nounset  #Treat unset variables as an error
+set -o pipefail
-set -o pipefail #Pipe will exit with last non-zero status if applicable
 shopt -s expand_aliases
 alias die='EXIT=$? LINE=$LINENO error_exit'
 CROSS='\033[1;31m\xE2\x9D\x8C\033[0m'
@@ -28,7 +27,7 @@ function msg() {
   echo -e "$TEXT"
 }
 
-msg "Setting up container OS..."
+echo -e "${CHECKMARK} \e[1;92m Setting up Container OS... \e[0m"
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
 while [ "$(hostname -I)" = "" ]; do
@@ -43,22 +42,20 @@ while [ "$(hostname -I)" = "" ]; do
 done
   echo -e "${CHECKMARK} \e[1;92m Network Connected: \e[0m $(hostname -I)"
 
-msg "Updating container OS..."
+echo -e "${CHECKMARK} \e[1;92m Updating Container OS... \e[0m"
 apt-get update &>/dev/null
 apt-get -qqy upgrade &>/dev/null
 
-# Install prerequisites
+echo -e "${CHECKMARK} \e[1;92m Installing Dependencies... \e[0m"
-msg "Installing prerequisites..."
 apt-get update &>/dev/null
 apt-get -qqy install \
     curl \
     sudo &>/dev/null
 
-# Customize container
+echo -e "${CHECKMARK} \e[1;92m Customizing Container... \e[0m"
-msg "Customizing container..."
+rm /etc/motd
-rm /etc/motd # Remove message of the day after login
+rm /etc/update-motd.d/10-uname
-rm /etc/update-motd.d/10-uname # Remove kernel information after login
+touch ~/.hushlogin
-touch ~/.hushlogin # Remove 'Last login: ' and mail notification after login
 GETTY_OVERRIDE="/etc/systemd/system/container-getty@1.service.d/override.conf"
 mkdir -p $(dirname $GETTY_OVERRIDE)
 cat << EOF > $GETTY_OVERRIDE
@@ -69,6 +66,5 @@ EOF
 systemctl daemon-reload
 systemctl restart $(basename $(dirname $GETTY_OVERRIDE) | sed 's/\.d//')
 
-# Cleanup container
+echo -e "${CHECKMARK} \e[1;92m Cleanup... \e[0m"
-msg "Cleanup..."
 rm -rf /debian11_setup.sh /var/{cache,log}/* /var/lib/apt/lists/*