Bash is the shell, or command language interpreter, that will appear in the GNU operating system. It is intended to conform to the IEEE POSIX P1003.2/ISO 9945.2 Shell and Tools standard. It offers functional improvements over sh for both programming and interactive use. In addition, most sh scripts can be run by Bash without modification.
|.sh - Bash Shell File (Developer Files)
BASH is the file format used to describe shell files which contain instructions that are written in the Bash program language. [More Information]
|.profile - Bash Profile File (Executable Files)
Files with the file extension Profile are Bash profile files which are used when Bash is started as a login shell. [More Information]