Answer Posted / narendra simha talluri

Above answer #3 is an example for file command

$file /bin /bin/ed /usr/src/cmd/ed.c /usr/man/man1/ed.1

/bin : directory
/bin/ed : pure executable
/usr/src/cmd/ed.c : c program text
/usr/man/man1/ed.1 : roff, nroff, or eqn input text

so these are the four fairly typical files( what i explained earlier )

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