crypt
[password
]<
file
>
encryptedfile
Encrypt a
file
to prevent unauthorized access.
password
is either a string of characters you choose or the flag
-k
, which assigns the value of environment variable CRYPTKEY as the password. The same
password
is used to encrypt a file or to decrypt an encrypted file. If no password is given,
crypt
prompts for one.
crypt
is available only in the United States (due to export restrictions).