simplified process

scripts/hero_mdbook.sh

@@ -1,38 +1,63 @@
 #!/bin/bash
+
+# Generate opening text.
+cat <<EOF
+
+* * * * *
+
+Welcome!
+
+The script will install hero and set the environment to work with mdbook.
+This will take a couple of minutes.
+
+* * * * *
+
+EOF
+
+sleep 2
+
+# Disable "Pending kernel upgrade" and  "Daemons using outdated libraries" windows
 sed -i "s/#\$nrconf{kernelhints} = -1;/\$nrconf{kernelhints} = -1;/g" /etc/needrestart/needrestart.conf
 sed -i "/#\$nrconf{restart} = 'i';/s/.*/\$nrconf{restart} = 'a';/" /etc/needrestart/needrestart.conf
-apt update && apt upgrade -y
+
+# Update and install dependencies
+apt-get update
+apt-get install -y lsb-release gpg
 curl https://sh.rustup.rs -sSf | sh -s -- -y
 source "$HOME/.cargo/env"
 export PATH=$PATH:/root/.cargo/bin
-apt install lsb-release curl gpg
 curl -fsSL https://packages.redis.io/gpg | gpg --dearmor -o /usr/share/keyrings/redis-archive-keyring.gpg
 echo "deb [signed-by=/usr/share/keyrings/redis-archive-keyring.gpg] https://packages.redis.io/deb $(lsb_release -cs) main" | tee /etc/apt/sources.list.d/redis.list
 apt-get update
-apt-get install redis -y
-apt install pkg-config -y
-apt-get install gcc -y
-apt install libssl-dev
+apt-get install -y redis pkg-config gcc libssl-dev
+
+# Download and run the hero installer script
 curl https://raw.githubusercontent.com/freeflowuniverse/crystallib/development/scripts/installer_hero.sh > /tmp/hero_install.sh
 bash /tmp/hero_install.sh
+
+# Start the SSH agent, run hero mdbook and build the mdbook
 eval $(ssh-agent)
 hero mdbook -u https://git.ourworld.tf/tfgrid/info_tfgrid/src/branch/main/heroscript
 cd /root/hero/var/mdbuild/duniayetu
 mdbook build
+
+# Generate closing text after successful script.
 cat <<EOF
 
 * * * * *
 
 The script has been successfully completed.
 
-To see the mdbook live on your browser with the SSH tunnel, 
+To see the mdbook live on your browser, 
 run the following command with the proper port (here we use 3333).
 
-mdbook serve --port 3333
+mdbook serve --hostname 0.0.0.0 --port 3333
 
 Happy mdbooking!
 
 * * * * *
 
 EOF
+
+# Send stderr to null and exit gracefully
 return 2> /dev/null; exit