The Hue Shell application provides access to the Pig, HBase, and Sqoop 2 command-line shells. The Shell application is designed to have the same look and feel as a Unix terminal. In addition to the shells configured by default, it is possible to include almost any process that exposes a command-line interface as an option in this Hue application.
Hue Shell is one of the applications installed as part of Hue. For information about installing and configuring Hue, see Hue Installation in http://www.cloudera.com/content/cloudera-content/cloudera-docs/CDH4/latest/CDH4-Installation-Guide/CDH4-Installation-Guide.html.
To properly isolate subprocesses so as to guarantee security, each Hue user who is using the Shell subprocess must have a Unix user account. The link between Hue users and Unix user accounts is the username, and so every Hue user who wants to use the Shell application must have a Unix user account with the same name on the system that runs the Hue Server. See Unix User Accounts in http://www.cloudera.com/content/cloudera-content/cloudera-docs/CDH4/latest/CDH4-Installation-Guide/CDH4-Installation-Guide.html for instructions.
For information about using each of the default shells, see the documentation on the following sites: