I am having problems installing drush 8 in ubuntu 16.04. when i insert the following command in the terminal
composer global require drush/drush:dev-master
I have also tried the documentation from drush.org
php -r "readfile('https://s3.amazonaws.com/files.drush.org/drush.phar');" > drush
but i get the following error msg
bash: drush: Is a directory
I am currently stuck.