file

Format:

file filename 

This lets the shell determine the type of file.

					$ file core 
core: ELF 32-bit LSB core file of 'awk' (signal 6), Intel 80386, 
version 1 

$ file data.f 
data.f: ASCII text 

$ file month_end.sh 
month_end.sh: Bourne shell script text
				

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