bash script stop on error

Understanding of the Bash environment variable Parsing Vulnerability 1. What are environment variables?Both Windows and Linux programs support environment variables. Generally, environment variables are stored at the beginning of the process memory

[[: Not Found error resolution--bash in Bash script summary 1Today, when writing a script, there is a strange problem: use [[: Not found] in the script. It is natural to solve problems when encountering problems.1. Is the bash version used too

https://www.zhihu.com/question/21418449Mort | Zsh vs. Bash: Incomplete contrast resolution (1) 2014-10-07BdpqlxzWhat's the difference between zsh and bash?A lot of people have written about "why zsh is better than bash", "Why zsh is better than

Write a robust bash scriptMany people use shell scripts to accomplish simple tasks and become part of their lives. Unfortunately, shell scripts can be very much affected by running exceptions. It is necessary to minimize such problems when writing

Shell scripts can have a very large impact when they run an exception. This article describes some of the techniques that make bash scripts robust. Using Set-u How many times did the script crash because there was no initialization of the

Linux bash script concise manual! Script Execution and debugging 1. absolute path execution. The file must have the execution permission. 2. Execute the sh command without the execution permission. 3 ,. add space or source to execute the command.

Xi. functionsThe shell function is defined by the description of the shell grammar above and holds a series of commands waiting to be executed later. When the shell function name is used as a simple command name, a series of commands associated with

1. What is shell? In fact, I have heard of shell before I came into contact with Linux. At that time, I was talking about shell programming and I knew nothing about it. But surprisingly, I remember this term when my memory is really bad. Okay,

Basis Learn the basics of Bash. Specifically, enter man bash and browse at least the full text; it's simple and not long. Other shells may work well, but Bash is powerful and available in almost all cases (learning Zsh,fish or other shells is

Many people use shell scripts to accomplish simple tasks and become part of their lives. Unfortunately, shell scripts can have a very large impact when they run an exception. It is necessary to minimize this type of problem when writing scripts. In