Commands using gpg

This will encrypt your single file and create a filename.gpg file.

Option: * -c : Encrypt with symmetric cipher

To decrypt

dhinesh@ubuntu:~$ gpg -c sample.rb.gpg

-s

Make a signature.

-e

Encrypt data.

-r

Encrypt for user id name.

Make sure the file contents can't be retrieved if anyone gets ahold of your physical hard drive.

With hard drive partition:

WARNING/disclaimer: Be sure you... F&%k it--just don't try this.

For instance, if people have signed your key, this will fetch the signers' keys.

According to the gpg(1) manual:

--gen-random 0|1|2 count

Emit count random bytes of the given quality level 0, 1 or 2. If count is not given or zero, an endless sequence of random bytes will be emitted. If used with --armor the output will be base64 encoded. PLEASE, don't use this command unless you know what you are doing; it may remove precious entropy from the system!

If your entropy pool is critical for various operations on your system, then using this command is not recommended to generate a secure password. With that said, regenerating entropy is as simple as:

This is a quick way to generate a strong, base64 encoded, secure password of arbitrary length, using your entropy pool (example above shows a 30-character long password).

This oneliner will update all the GPG keys that you have in your keyring.

You can choose these mirror servers to get gpg keys, if the official one ever goes offline

keyserver.ubuntu.com

pool.sks-keyservers.net

subkeys.pgp.net

pgp.mit.edu

keys.nayr.net

keys.gnupg.net

wwwkeys.en.pgp.net #(replace with your country code fr, en, de,etc)

create simple encrypted notes to yourself using a passphrase on sprunge.us

Create a encrypted tar.gz file from a directory on the fly. The encryption is done by GPG with a public key. The resulting filename is tagged with the date of creation. Very usefull for encrypted snapshots of folders.

Acquires a bit-by-bit data image, gzip-compresses it on multiple cores (pigz) and encrypts the data for multiple recipients (gpg -e -r). It finally sends it off to a remote machine.

I like man pages, and I like using `less(1)` as my pager. However, most GNU software keeps the manual in the 'GNU Texinfo' format, and I'm not a fan of the info(1) interface. Just give me less.

This command will print out the info(1) pages, using the familiar interface of less!

This command will nicely dump a filesystem to STDOUT, compress it, encrypt it with the gpg key of your choice, throttle the the data stream to 60kb/s and finally use ssh to copy the contents to an image on a remote machine.

Change directory (cd) to the directory where all your encrypted files are placed, and then run the command - then you are asked to insert your secret gpg password - ubuntu 8.04

A very simple command to send a signed and encrypted message from the command line using GPG Keys

The coolest way I've found to backup a wordpress mysql database using encryption, and using local variables created directly from the wp-config.php file so that you don't have to type them- which would allow someone sniffing your terminal or viewing your shell history to see your info.

I use a variation of this for my servers that have hundreds of wordpress installs and databases by using a find command for the wp-config.php file and passing that through xargs to my function.

imports a public key from the web. I know this by head.. but useful nevertheless

gpg's compression is as suitable as gzip's however your backups can now be encrypted.

to extract use:

Adjust the

part for password length.

I use filenames like "hans@commandlinefu.com.gpg" and a vim which automatically decrypts files with .gpg suffixes.

gpg command to encrypt a file on the command line.