# 123
'E 0' means this is entry '' of directory '', means the root entry. It should have at least mode 0x4000 to be a directory.
E 0

# 59
m is 'mode' command. It sets st_mode field in stat struct.
m 0x4000 

# 46
This means "end of direntry started by 'E 0'"
<

# 29
Let's create directory "qqq".
E 3
qqq
m 0x4000
<

# 87
Abandon creating entries in root directory, start creating entries in 'qqq' directory.
D 4
/qqq

E 12
regular_file
m 0x8000
s 16 
# 32
This means content of the file.
_ 15
Hello, world!

<

E 7
symlink
m 0xA000
s 14 
_ 14 
symlink_target
<

E 4
fifo
m 0x1000
<

E 17 
character_special
m 0x2000
r 0x0103
<

E 13
block_special
m 0x6000
r 0x0301
<

E 6
socket
m 0xC000
<

# 39
Dot means end of file, it is optional.
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