The command output provides a short description of the file and data type.
Language tests use a special tag to determine which programming language a binary executable file is written in.The information needed to perform these tests is stored in /etc/magic or /usr/share/misc/magic from a compiled magic file. Magic tests use a short string of numbers stored near the beginning of the file ("magic number") to test if the file is a binary executable and, if so, determine its type.This way, the file command determines if the file is a common type for your system (such as a text file, image, directory, etc.). Filesystem tests perform a stat(2) system call and check the result against the system header file.The file command performs three sets of tests trying to determine the file type, in this order: In the syntax above, file name represents the name of the file you want to test. The file command uses the following basic syntax: file tgz file, which can be extracted and opened with the help of the “tar” command in the following manner:įor demonstrating this method, we will first create a. gz file extracted by following any of the three methods shown above, you can open it simply by double-clicking on it.Īt times, instead of having a simple. gz file has been removed because of running the above-mentioned command. When you visit your Home directory after running this command, you will notice that your actual file has been extracted as highlighted in the image shown below. However, if you have not performed any other extraction methods on the same file before, then running this command will not display any such message. In our case, since we already had an extracted file with the same name in our Home directory because of running the command shown in Method # 2, our terminal prompted us if we want to overwrite this file or not, therefore, we proceed by entering a “y” as shown in the following image. gz file, which in our case was gzFile.txt. Here, you can replace FileName with the name of your. gz file in our Home directory by running the following command in our terminal: For using the “gzip” command with the “-d” flag, you will have to perform the following steps:įor demonstrating the first three methods, we will first create a. This method is helpful when you wish to extract the actual file while deleting the. Method # 1: Using the “gzip” Command with “-d” Flag: We have listed down all those methods below: There are multiple different methods in which we can extract and open a. Note: The flavor of Linux that has been used to demonstrate these methods is Linux Mint 20. Today, we will explore the methods of extracting and opening a. gz file format is a very commonly used compressed file format for the Linux operating system. When you want to transmit a file from one end to another, its size plays a very important role in deciding whether you want to send it as it is or compress it. We know that a file in a computer system can be as small as a few Bytes or as large as a thousand Gigabytes.
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