Linux Bash Shell

 The Bash Shell is an updated version of the original Bourne shell that was created by the free Software Foundation for its open source GNU project.for this reason,it is a widely used shell in the open source community.

 Its syntax is similar to that used by the Bourne Shell,however it incorporates some of the more advance features found in the C,TC and Korn shells.

 Among the added features that Bourne shell lacked are the ability to complete file names by pressing the TAB key,the ability to remember a history of recent commands and the ability to run multiple programs in the background at once.

 It is known as "bash" The default prompt for bash shell use $ Dollar sign.