What is 20.1 shell?
The shell is the intermediate medium used when the system interacts with the computer hardware, and it is just a tool of the system.
In fact, he has a layer of things between the shell and the computer hardware-the
1. What is a shell script?It is a scripting language, not a programming language.You can use some logical judgments, loops, and other syntax.You can customize the sub-function, which is a collection of system commands.Shell scripts enable automated
Common shell: -------------- from "laruence's Linux private dish"
In the early UNIX era, there were many developers, so shell had many versions based on the developer's differences, such
Frequently heard Bourne shell (SH ),C shell,Commonly used
--book author Shenmon reprint please specify the source
Content Introduction
Objective
What is a shell?
Our first shell script
Run the shell script
Summarize
Part V Third lesson preview: variable in hand, shell not
Basics of Linux Shell scripting here we first talk about the shell of the basic syntax, the beginning, comments, variables and environment variables, to do a basic introduction, although not related to specific things, but lay the foundation is to
What is the Q:1 shell script and is it required?
A: A shell script is a text file that contains one or more commands. As a system administrator, we often need to use multiple commands to complete a task, and we can add all of these commands in a
Create a scriptThere are many different shells in Linux, but usually we use Bash (Bourne again shell) for Shell programming because bash is free and easy to use. So the script I've provided in this article is all about using bash (but in most cases
Knowledge before learning shell scripts1) Record command historyThe commands we've knocked on, Linux will be recorded, and presets can record 1000 historical commands. These commands are saved in the. bash_history file in the user's home directory.
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