Alibabacloud.com offers a wide variety of articles about linux shell script echo commands, easily find your linux shell script echo commands information here online.
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
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
I. PrefaceShell programming is widely used in the Unix/linux world, and mastering shell programming is a must for a good unix/linux developer and system administrator. The main task of script debugging is to find out the cause of the script error
Linux Shell Scripting Basics Here we first talk about the shell's grammatical basis, beginning, annotation, variables and environment variables, to do a basic introduction, although not involved in specific things, but lay a good foundation for
Transferred from: http://itlab.idcquan.com/linux/SHELL/727128.htmlThis paper introduces the shell script debugging technology comprehensively and systematically, including using echo, tee, trap and other commands to output key information, tracking
1. Linux Scripting Basics
1.1 Basic Introduction to grammar
1.1.1 Start
The program must start with the following line (must be on the first line of the file):
#!/bin/sh
The symbolic #! is used to tell the system that the parameters behind it
I. Preface
Shell programming is widely used in the Unix/linux world, and mastering shell programming is a must for a good unix/linux developer and system administrator. The main task of script debugging is to find out the cause of the script error
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
[This is my own study notes, welcome reprint, but please specify the source:http://blog.csdn.net/jesson20121020]
Take a look at some of the variables in the shell today.
Variable Type:There are several variables in the shell:1) Local
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.