Append two commands in a file

[hacxx]

Commonly to save a result into a file in batch, the cmd needs >

Example:
dir c:\windows\system32 > file.txt

but if i want to append a second command to file.txt how it should be done?

Example:
dir c:\windows\system32 > file.txt
dir c:\windows > file.txt

[ShadowThief]

You can use dir c:\windows>>file.txt to add text to the end of a text file instead of overwriting it.

[hacxx]

Thanks ShadowThief