Logging Information I

Let’s learn how to log information using the log.Fatal() and log.Panic() functions.

We'll cover the following

Introduction to logging information
The log.Fatal() function
The log.Panic() function
- Let’s try our code

Although it is useful to print error messages onscreen, there are times that we need to keep all error messages together and be able to search them when it is convenient for us. In this case, we need to use one or more log files.

Introduction to logging information

Log files

All UNIX systems have their own log files for writing logging information that comes from running servers and programs. Usually, most system log files of a UNIX system can be found under the /var/log directory. However, the log files of many popular services, such as Apache and Nginx, can be found elsewhere, depending on their configuration.

Get hands-on with 1400+ tech skills courses.

Course Introduction

Introduction to Go

Basic Go Data Types

Composite Data Types

Reflection and Interfaces

Go Packages and Functions

Telling a UNIX System What to Do

Go Concurrency

Building Web Services

Working with TCP/IP and WebSocket

Working with REST APIs

Code Testing and Profiling

Working with gRPC

Go Generics

Conclusion

Appendix A—Go Garbage Collector

Logging Information I

Introduction to logging information

Log files