Contango & tank storage cost


To confirm

Contracts on a ULCC is $30 000 days? Contango $2 barrel. $4 million dollars to store for 30 day

Enable clean URL


Do the following to enable clean URL in Debian 8:

  1. Enable rewrite module: a2enmod rewrite
  2. Open /etc/apache2/apache2.conf and look at the block <Directory /var/www/>. Then change from AllowOverride None to AllowOverride All: sed -i '/var\/www\//,/Directory>/ s/AllowOverride None/AllowOverride All/' /etc/apache2/apache2.conf
  3. Restart apache: service apache2 restart.

Oil broker

Check whether a command is shell builtin or not


type pwd
#pwd is a shell builtin


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