Linux Common shell types

Different shells have different functions, the shell also decided that the default shell in Linux is/bin/bash, the popular shell has ash, bash, Ksh, CSH, zsh, and so on, different shells have their own characteristics and use.

Bash
The Shell,bash shell, which is used by default by most Linux systems, is a free version of the Bourne Shell, which is the oldest Unix Shell,bash and features a help command
To view Help. The included functionality covers almost all of the functionality that the shell has, so a generic shell script specifies that it is the execution path.

Csh
C Shell uses the "Class C" syntax, CSH is a C language style of a shell, its internal command has 52, a larger. Not much is being used at the moment,
have been replaced by/BIN/TCSH.

Ksh
The syntax of the Korn shell is the same as the Bourne shell, with the easy-to-use features of the C shell. Many of the installation scripts use Ksh,ksh with 42 internal commands, which are somewhat restrictive compared to bash.

Tcsh
TCSH is an enhanced version of CSH and is fully compatible with C shell.

Sh
is a shortcut that has been replaced by/bin/bash.

Nologin
means that the user cannot log on

Zsh
One of the largest shell:zsh in Linux at the moment. It has 84 internal commands and is more complex to use. In general, you will not use
The shell.

Linux Common shell types