Heys,

Steps to installing drush using composer on server

- login to putty

- check the composer is install and working by "composer --version"

- For installing drush type - composer global require drush/drush:7.* (a process is running up wait until complete-see below)

Changed current directory to /home/fsinnw1evfmi/.composer

./composer.json has been created

Loading composer repositories with package information

Updating dependencies (including require-dev)

  - Installing symfony/yaml (v2.8.36)

    Downloading: 100%

  - Installing symfony/polyfill-mbstring (v1.7.0)

    Downloading: 100%

  - Installing symfony/var-dumper (v2.8.36)

    Downloading: 100%

  - Installing psr/log (1.0.2)

    Downloading: 100%

  - Installing pear/console_table (v1.2.1)

    Downloading: 100%

  - Installing d11wtq/boris (v1.0.10)

    Downloading: 100%

  - Installing drush/drush (7.4.0)

    Downloading: 100%

symfony/var-dumper suggests installing ext-symfony_debug ()

pear/console_table suggests installing pear/Console_Color2 (>=0.1.2)

Writing lock file

Generating autoload files

- Now let the system know where the drush is place on sever so for this set the environment variable, for this find the "/home/fsinnw1evfmi/.composer" folder and search vendor folder and drush folder inside vendor folder, now set the path using export command below

- export PATH="$PATH:/home/fsinnw1evfmi/.composer/vendor/drush/drush"

- Now type drush status and hit enter, if it is installed correctly and you will get the results.

Note: For the video tutorial use this link