输出`ls -l`命令中有几种可能的文件类型？

报告的文件类型ls取决于基础文件系统，操作系统的功能以及的特定实现ls。

该l类型是常见的符号链接文件类型。

（应该）记录在您的ls手册中。

在OpenBSD上（macOS和AIX具有相同的列表，但顺序不同）：

-     regular file
b     block special file
c     character special file
d     directory
l     symbolic link
p     FIFO
s     socket link

在NetBSD上（不带a和的FreeBSD相同A）：

-     Regular file.
a     Archive state 1.
A     Archive state 2.
b     Block special file.
c     Character special file.
d     Directory.
l     Symbolic link.
p     FIFO.
s     Socket link.
w     Whiteout.

从info ls（即GNUls手册）：

‘-’
     regular file
‘b’
     block special file
‘c’
     character special file
‘C’
     high performance (“contiguous data”) file
‘d’
     directory
‘D’
     door (Solaris 2.5 and up)
‘l’
     symbolic link
‘M’
     off-line (“migrated”) file (Cray DMF)
‘n’
     network special file (HP-UX)
‘p’
     FIFO (named pipe)
‘P’
     port (Solaris 10 and up)
‘s’
     socket
‘?’
     some other file type

在Solaris 11上：

d
The entry is a directory.

D
The entry is a door.

l
The entry is a symbolic link.

b
The entry is a block special file.

c
The entry is a character special file.

p
The entry is a FIFO (or “named pipe”) special file.

P
The entry is an event port.

s
The entry is an AF_UNIX address family socket.

-
The entry is an ordinary file.