Composer Upgrade guides for Composer 1.x to 2.0

September 27, 2021 . 1 MIN READ

Remove the current installation:

sudo apt remove composer

Install the latest version:

php -r “copy(‘https://getcomposer.org/installer’, ‘composer-setup.php’);”

php -r “if (hash_file(‘sha384’, ‘composer-setup.php’) === ‘756890a4488ce9024fc62c56153228907f1545c228516cbf63f885e036d37e9a59d27d63f46af1d4d07ee0f76181c7d3’) { echo ‘Installer verified’; } else { echo ‘Installer corrupt’; unlink(‘composer-setup.php’); } echo PHP_EOL;”

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

php -r “unlink(‘composer-setup.php’);”

Resource: https://www.digitalocean.com/community/questions/how-to-install-composer-2

Read more: https://getcomposer.org/upgrade/UPGRADE-2.0.md

https://www.codegrepper.com/code-examples/shell/how+to+upgrade+composer+version+in+ubuntu