Script to install ZSH specific version via compilation

zsh-install-compilation.sh

#!/bin/bash

ZSH_VER="zsh-5.9"
ZSH_URL="https://www.zsh.org/pub/${ZSH_VER}.tar.xz"
TMP_DIR="/tmp"

# Check if the script is run as root
if [ "$EUID" -ne 0 ]; then
    echo "Error: This script should not be run as root."
    exit 1
fi

# Determine package manager and required packages
if [ -x "$(command -v yum)" ]; then
    PACKAGE_MANAGER="yum"
    required_packages=("gcc" "make" "ncurses-devel")
elif [ -x "$(command -v apt)" ]; then
    PACKAGE_MANAGER="apt"
    required_packages=("gcc" "make" "libncurses5-dev")
else
    echo "Error: Unsupported package manager by the script. Exiting."
    exit 1
fi

# Check required packages
for package in "${required_packages[@]}"; do
    # Check if the package is installed
    if [ "$PACKAGE_MANAGER" == "yum" ]; then
        if ! rpm -q "$package" &>/dev/null; then
            echo "Installing $package..."
            sudo yum install -y "$package"

            # Check if installation was successful
            if [ $? -ne 0 ]; then
                echo "Failed to install $package. Exiting."
                exit 1
            fi
        else
            echo "$package is already installed."
        fi
    elif [ "$PACKAGE_MANAGER" == "apt" ]; then
        if ! dpkg -s "$package" &>/dev/null; then
            echo "Installing $package..."
            sudo apt update
            sudo apt install -y "$package"

            # Check if installation was successful
            if [ $? -ne 0 ]; then
                echo "Failed to install $package. Exiting."
                exit 1
            fi
        else
            echo "$package is already installed."
        fi
    fi
done

echo "Downloading ZSH package..."
curl -sL ${ZSH_URL} | tar -xJ -C ${TMP_DIR}

if [ "$?" -eq 0 ]; then
    sudo chown -R root:root "${TMP_DIR}/${ZSH_VER}"
    cd "${TMP_DIR}/${ZSH_VER}"

    echo "ZSH Downloaded. Start compilation..."
    ./configure && \
    make && make check

    if [ "$?" -ne 0 ]; then
        echo "Check of compilation has failed. Check logs."
        exit 1
    else
        echo "Successful make tests. Proceeding with the installation..."
        sudo make install

        if [ "$?" -eq 0 ]; then
            echo "ZSH installed successfully!"
            /usr/local/bin/zsh --version

            echo "Make ensure the ZSH binary is in PATH configuration."

            cd /tmp && rm -rf "${TMP_DIR}/${ZSH_VER}"
        else
            echo "Unknown failure during ZSH Installation via make install."
            exit 1
        fi
    fi
else
  echo "ZSH installation has failed."
fi