Answer / vasavi

using file command

Answer / subbareddy kake

By using file command or

First list the all files by using ls -lrt.you will
following type format.
drwxr--r--
-rwxr--r--

so first one directory second one file only

Answer / srinath.p

$ls -l filename/directoryname
if the first digit is - then it is file,if it is d then it
is directory

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