![]() This is same as the file descriptor, and you can use read(), write() system calls to read and write from the socket. You can refer to this socket file using the sockfd. Lrwxrwxrwx 1 root root 15 09:35 stdout -> /proc/self/fd/1Ī socket file is used to pass information between applications for communication purposeĪns : You can create a socket file using socket() system call available underĮxample in C programming int sockfd = socket(AF_INET, SOCK_STREAM, 0) Lrwxrwxrwx 1 root root 15 09:35 stdin -> /proc/self/fd/0 Lrwxrwxrwx 1 root root 15 09:35 stderr -> /proc/self/fd/2 Lrwxrwxrwx 1 root root 24 09:35 sndstat -> /proc/asound/oss/sndstat How can we list linked files in my present working directory ? There are two types of link files available in Linux/Unix ie soft and hard link. The inode number for this file and its parent files are same. Prw- 1 syslog syslog 0 15:38 /var/run/rsyslog/kmsg Prw-r- 1 root root 0 09:35 /dev/.initramfs/usplash_fifo Prw-r- 1 root root 0 09:35 /dev/.initramfs/usplash_outfifo ![]() 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. How can we list character files in my present working directory?Įxample listing of character files(located in /dev) Provides a serial stream of input or output.Your terminals are classic example for this type of files. brw-rw- 1 root disk 8, 1 09:35 sda1īrw-rw- 1 root disk 8, 5 09:35 sda5 Character device files in Linux How can we list them in my present working directory?Įxample listing of Block files(for you to see these file, they are located in /dev). ![]() These files are hardware files most of them are present in /dev.Īns : Use fdisk command or create virtual partition. drwxr-xr-x 2 surendra surendra 4096 18:37 binĭrwxr-xr-x 5 surendra surendra 4096 18:46 Desktopĭrwxr-xr-x 2 surendra surendra 4096 14:36 Documentsĭrwxr-xr-x 2 surendra surendra 4096 17:45 DownloadsĪns : Use mkdir command Block file type in Linux How can we list them in my present working directory?Įxample listing of directories. And this type of files will be in blue in color with link greater than or equal 2. These type of files contains regular files/folders/special files stored on a physical device. rw-r-r- 1 krishna krishna 2113536 13:32 Aditya 365 – Janavule.mp3ĭirectory file type explained in Linux/Unix rw-r-r- 1 krishna krishna 173448 21:20 Transformers-Teaser-Wallpaper-310.jpg How to create regular files in Linux/Unix?Īns: Use touch/vi command and redirection operators etc. ![]() These are the files which are indicated with “-” in ls -l command output at the starting of the line. How to list/see particular file type Regular file type Explained in Linux Definition and information of the file type We will learn about different types of files as below sequence for every file type. A door is a special file for inter-process communication between a client and server (so total 8 types in Unix machines). And you can see the file type indication at leftmost part of “ls -l” command.įor your information there is one more file type called door file(D) which is present in Sun Solaris as mention earlier. So in practical we have total 7 types(1+1+5) of files in Linux/Unix. Special files(This category is having 5 sub types in it.) How many types of file are there in Linux/Unix?īy default Unix have only 3 types of files. When ever you start working on Linux/Unix box you have to deal with different file types(linux/unix) to effectively manage them O.K, why is it that much important to know file types?Īnswer: This is because Linux considers every thing as a file. “ How many types of files are there in Linux/Unix and what are they? ” This is a common question to every person who starts to learn Linux.
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