What to do if the golang shell is garbled?

Golang’s solution to the problem of garbled characters when using Shell commands

The rise of the Go language has made it the language of choice for many developers. When writing Golang programs, we will inevitably use some Shell commands to perform some operations, such as system commands, file-related commands, etc. But sometimes, when running these Shell commands, you will encounter garbled characters, which will confuse the program logic and cause the program to fail. So how to solve this problem? This article will introduce in detail the solution to the problem of garbled characters encountered in Golang when using Shell commands.

1. Understand Golang’s default encoding method when executing Shell commands

In Go language, you can use the Command function of the os package to execute Shell commands. The relevant code is as follows:

cmd := exec.Command("ls", "-l")

When we run this code, we will find that the file name, file path and other related information in the execution result are all garbled. output in the form. This is because, in Golang, the default encoding used when executing Shell commands is GBK. In most systems, the encoding of system commands and external files is UTF-8, so this leads to the problem of garbled characters.

2. Use UTF-8 encoding to execute Shell commands

The way to solve the problem of garbled characters is to execute Shell commands in UTF-8 encoding. In Golang, we can make the output of the Shell command output in UTF-8 encoding by setting the Stdout and Stderr properties of Command. The relevant code is as follows:

cmd := exec.Command("ls", "-l")
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
cmd .Run()

In this code, we set the Stdout and Stderr properties to the standard output and standard error output in the os package, so that the output of the Shell command is output in UTF-8 encoding.

3. Set the system environment variables

When we still cannot solve the garbled problem using the above methods, we can try to set the system environment variables in the program. In Windows systems, we can set system environment variables through the following code:

cmd.Env = []string{"LANG=en_US.UTF-8"}

And in Linux and In Unix-like systems such as MacOS, we need to set the LC_ALL environment variable. The relevant code is as follows:

cmd.Env = []string{"LC_ALL=en_US.UTF-8"}

This way You can set the system environment variables to output the Shell command in UTF-8 encoding.

4. Summary

In Golang, it is a common problem to encounter garbled characters when using Shell commands, but through the above methods, we can easily solve this problem. Whether it is modifying the execution method of the program or setting system environment variables, it is a relatively simple and easy solution. Hope it helps everyone.

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