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Bash command on MAC (1) Introduction to Bourne-again shell

Source: Internet
Author: User
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The terminal on Mac uses the Bourne-again shell command, bash for short.

Bash is a project developed and promoted by GNU.Extended Bourne shell

Bourne shellIs the original shell used by UNIX, authorSteven Bourne

Bash is the internal shell of many Linux platforms.There are many shells on UNIX, includingTcsh, CSH, Ash, bsh, KSh

Shell scripts are roughly the same. A shell script can be used in many types of shells.

Shell in the narrow sense refers to the command line terminal.

Role of shell: the user enters the command, throughShell communicates with the kernel to control the normal operation of hardware

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