I need to encrypt a huge file but haven't sufficient storage on my hard-drive to store the file and its encrypted version at the same time.

It appears possible to gradually delete the file alongside the encryption so that the used space remains more or less the same.

If I encrypt my file with

 openssl aes-256-cbc  -in myfile -out myfile.aes-256-cbc

How would you suggest to gradually delete the original file myfile alongside the encryption?

I need to encrypt a huge file but don't have sufficient storage on my hard-drive to store the file and its encrypted version at the same time.

It appears possible to gradually delete the file alongside the encryption so that the used space remains more or less the same.

If I encrypt my file with

 openssl aes-256-cbc  -in myfile -out myfile.aes-256-cbc

How would you suggest to gradually delete the original file myfile alongside the encryption?