How to encrypt text file in Linux (VIM)
Written on
October 5, 2009 at 7:07 am by
mkyong
It is very easy to encrypt a text file in Linux, VIM text editor can be used to achieve it.. vim -x [file name]
mkyong@snake ~]$ vim -x mkyong.txt
This will prompt us to enter encryption key (password)
Enter encryption key : ****** Enter same key again: ******
After that, key in the text data and save it. Now the “mkyong.txt” text file is encrypted with my password.
Ok, let try to view the text file content
[mkyong@snake ~]$ cat mkyong.txt VimCrypt~01!??PR? ??0????? ?W#?Q?W? (L??Y?? [mkyong@snake ~]$
The text file content is encrypted with some alien code 
, Done, no body can view the content unless they know my encryption key.
How to change the encrypted password?
We can issue the following command (vim +X [file name]) to change the encrypted password.
mkyong@snake ~]$ vim +X mkyong.txt "mkyong.txt" [crypted] 1L, 37C Enter encryption key: *** Enter same key again: ***
Done
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