Shell scripting basics Chinese WORD version-php.cn

Shell scripting basics Chinese WORD version

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Introduction

update time：2024-02-03

Shellitself is a program written in C language. It is a bridge for users to use Linux. Shell is both a command language and a programming language. As a command language, it interactively interprets and executes commands entered by the user; as a programming language, it defines various variables and parameters, and provides many control structures found only in high-level languages, including loops and branches. Although it is not part of the Linux system core, it calls most of the functions of the system core to execute programs, create files, and coordinate the running of various programs in a parallel manner. Therefore, for users, the shell is the most important utility program. In-depth understanding and proficiency in the characteristics and usage of the shell are the keys to making good use of the Linux system. It can be said that the proficiency of using shell reflects the user's proficiency in using Linux. Interested friends can come and take a look

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