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WHAT IS SHELL?
• A shell accepts and interprets commands.
• A shell is an environment in which commands, programs, and shell scripts are run.
• There are many types of Linux shells available. Bash is one of them, and this course discusses it further.
MOST COMMON SHELL TYPES:
Bash or Bourne Again Shell: This is the most common shell available on all Linux and debian based systems. It is open source and freeware.
CSH or C Shell: This Shell scripting program uses the C programming’s shell syntax and its almost similar to C.
KSH or Korn Shell: This shell is quite advanced and it’s a high level programming language, used in Oracle.
TCSH TCSH: is an advanced version of Berkeley Unix C shell. It again supports C style syntax