Zend Framework 1.11.12 installation in Ubuntu 12.04

• Extract archive containing Zend Framework to any directory.
• Go to subdirectory bin of Zend Framework.
• Create symlink zf to file zf.sh:

  ln -s zf.sh zf

• Add path to ZF/bin to system PATH variable at the end of /etc/profile file, ex:

  
  PATH="/var/www/lib/ZendFramework-1.11.12/bin:$PATH"
  export PATH
  						

• If we get following error during running zf command from arbitrary directory:

  Could not open input file: ./zf.php

  then we must do correction to the zf.sh file:

  
  #PHP_DIR="$(dirname "$SELF_LINK")"
  PHP_DIR="$(dirname "$0")"