shell script mkdir

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

First, Shell script introductionShell scripts to write well, you must continue to practice writing to write well, there is no shortcutTo have a general idea of a script when we get a demand, think of how the need to achieveShell scripting can

- 20.1 shell script describes the- 20.2 shell script structure and executes- 20.3 date command usage- 20.4 shell the variables in the script #  20.1 shell Script Introduction-  shell is a scripting language    attention

--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

I. Basic Shell syntax1. VariablesBy convention, Shell variables are composed of uppercase letters and underscores (_). There are two types of Shell variables:Environment VariableEnvironment variables can be transmitted from the parent process to the

67. Shell Script Introduction, shell script structure and execution, date command usage, variables in shell scriptFirst, Shell script introductionThe shell is a scripting language aming_linux blog.lishiming.netYou can use logical judgments, loops,

What is a Shell script? The simplest explanation is that a shell script is a file that contains a series of commands. The shell reads the file and executes all the commands in the file as if the commands were entered directly into the command

Compile-language:The program needs a special compilation process before execution, which compiles the program into a machine language file, the runtime does not need to be re-translated, the results of the direct use of the compilation is OK. The

Fundamentals of Shell ScriptingWriting specifications for 1.shell scripts2 variable and special variable application3 Local variables and global variables4 Test-judgment expressionIn some complex Linux maintenance efforts, a large number of

Shell Script Introduction Shell is a scripting language You can use logical judgments, loops, and other syntax Functions can be custom-defined The shell is a collection of system commands Shell scripts enable automated