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GPG: Password Encryption
Encrypt a file
echo 'hello' > hello.txt gpg -c hello.txt # OR gpg --symetric hello.txt
Enter the prompted password.
After that, it will generate a file named hello.txt.gpg.
Decrypt a file
gpg hello.txt.gpg # OR gpg -d hello.txt.gpg # OR gpg --decrypt hello.txt.gpg
Non-interactive
# Plain text gpg --batch --passphrase 'mypasswd' -c hello.txt # File descriptor stdout echo 'mypasswd' | gpg --batch --passphrase-fd 0 -c hello.txt # File descriptor stdin gpg --batch --passphrase-fd 1 -c hello.txt #type your string here and end with ^D^D (2x Ctrl-D) # Content of a file gpg --batch --passphrase-file ./myfile.txt -c hello.txt
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