File system types

LPIC-1

Char Type Example

- regular file /etc/passwd

d directory /home

l symbolic link /bin → usr/bin on many systems

c character device /dev/tty1, /dev/null

b block device /dev/sda (disks, read in blocks)

p named pipe (FIFO) created with mkfifo

s socket /run/systemd/... sockets

c means character device file.

It's a special file in /dev that represents a device accessed as a stream of bytes, one at a time, with no buffering or random access. Terminals (/dev/pts/0, /dev/tty1), /dev/null, /dev/zero and /dev/random are examples.

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