Pointers for extracting valuable snippets of data from standard Linux files
The Linux operating system is a cup that overflows with files. There are files for configuration settings, text files, documentation files, log files—the list goes on and on. Quite often, those files contain information you need to access to find important data. Although you can easily dump the contents of most files to the screen with standard utilities such as cat, more, and others, there are utilities better suited for parsing out relevant values.