How To install Composer On Ubuntu 20.04 LTS / Linux Mint 19.3

Video Tutorial -

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Composer is a popular dependency management tool for PHP, created mainly to facilitate installation and updates for project dependencies. It will check which other packages a specific project depends on and install them for you, using the appropriate versions according to the project requirements.
Offcial Website - https://getcomposer.org/
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Testing Environment Setup-  : Ubuntu 20.04 LTS (focal fossa)   |  Linux Mint 19.3 Tricia
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lsb_release -cd
apt update ; apt install -y build-essential net-tools curl git software-properties-common php-cli

curl -sS https://getcomposer.org/installer | php ; mv composer.phar /usr/local/bin/composer ; chmod +x /usr/local/bin/composer ; composer -V


Or
apt update ; apt install -y build-essential net-tools curl git software-properties-common php-cli
Composer link - https://getcomposer.org/download/


php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"

php -r "if (hash_file('sha384', 'composer-setup.php') === 'e0012edf3e80b6978849f5eff0d4b4e4c79ff1609dd1e613307e16318854d24ae64f26d17af3ef0bf7cfb710ca74755a') { echo 'Installer verified'; } else { echo 'Installer corrupt'; unlink('composer-setup.php'); } echo PHP_EOL;"

php composer-setup.php --install-dir=/usr/local/bin --filename=composer

composer -V

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