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1. #LINUX GREP FOR FILE TYPE HOW TO#
2. #LINUX GREP FOR FILE TYPE SERIAL#
3. #LINUX GREP FOR FILE TYPE ARCHIVE#

We can create a socket file using the socket() system call. We can find out Symbol link file by using the following command: ls -l | grep ^lĪ socket is a special file that is used to pass information between applications and enables the communication between two processes. Symbol link files are also called Symlink and are similar to shortcuts in Windows. We can use the file command to find out file type:Ī symbol link file is a type of file in Linux which points to another file or a folder on your device. We can find out pipe file by using the following command: ls -l | grep ^p This file sends data from one process to another so that the receiving process reads the data first-in-first-out manner. The “name” of a named pipe is actually a file name within the file system. FIFO stands for “First In, First Out” and refers to the property that the order of bytes going in is the same coming out. The other name of pipe is a “named” pipe, which is sometimes called a FIFO. We can use the file command to find out the type of file: We can find out character device files by: ls -l | grep ^c

#LINUX GREP FOR FILE TYPE SERIAL#

The terminal, serial ports, etc are examples of this type of file. These files provide a serial stream of input or output and provide direct access to hardware devices. We can find out block file by using the following command: ls -l | grep ^bĪ character file is a hardware file that reads/writes data in character by character in a file. These files are hardware files and most of them are present in /dev. A block device is any device that performs data Input and Output operations in units of blocks. We can find out directory file by using the following command: ls -l | grep ^dīlock files act as a direct interface to block devices hence they are also called block devices. We can navigate between directories using the cd command If we have 10 files in a directory, we will have 10 entries in the directory file. A directory file contains an entry for every file and sub-directory that it houses. This type of file will be denoted in blue color with links greater than or equal to 2. The sole job of directory files is to store the other regular files, directory files, and special files and their related information. Or we can use the “ file *” command to find out the file type Regular files contain all readable files such as text files, Docx files, programming files, etc, Binary files, image files such as JPG, PNG, SVG, etc, compressed files such as ZIP, RAR, etc. These files are located in a directory/folder. It is used to store information such as text, or images. Regular files are ordinary files on a system that contains programs, texts, or data.

#LINUX GREP FOR FILE TYPE ARCHIVE#

The following table shows the types of files in Linux and what will be output using ls and file command File Type Command to create the File Located in The file type using “ls -l” is denoted using FILE command output Regular FIle touch Any directory/Folder – PNG Image data, ASCII Text, RAR archive data, etc Directory File mkdir It is a directory d Directory Block Files fdisk /dev b Block special Character Files mknod /dev c Character special Pipe Files mkfifo /dev p FIFO Symbol Link Files ln /dev l Symbol link to Socket Files socket() system call /dev s Socket Types of File and Explanation Regular Files We can also use ls command to determine a type of file. file -extension GFG.rarįor more information and usage options, you can use the following command: man file We can use the –extension option to print a slash-separated list of valid extensions for the file type found. Using -L option will follow symlinks (default if POSIXLY_CORRECT is set): file -L stdin Using -F option will use string as separator instead of “:”. Using -b option will not prepend filenames to output lines file -f GFG.txt Using the -s option we can read the block or character special file. We can pass a list of files in one file and we can specify using the -f option as shown below: cat file.txt We can test a file type by typing the following command: file file.txt You can run the following command to verify the version of the file utility: file -v

#LINUX GREP FOR FILE TYPE HOW TO#

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