How to enter the Default Keyring password via the command line?

Thanks to python-gnomekeyring, this is relatively easy:

python -c "import gnomekeyring;gnomekeyring.unlock_sync(None, 'my password');"

Or as a proper script:

#!/usr/bin/env python
import gnomekeyring
gnomekeyring.unlock_sync(None, 'my password');

I think you don't need to install the package. But it can't hurt to try.

Keep in mind that storing your password on your hard disk is an immense security risk. You should be using this instead:

#!/usr/bin/env python

import gnomekeyring
import getpass

gnomekeyring.unlock_sync(None, getpass.getpass('Password: '));

You can save this script, for example, as unlock-keyring.py and then do the following:

sudo mv unlock-keyring.py /usr/bin/unlock-keyring
sudo chmod a+x /usr/bin/unlock-keyring

From then, you can always just type unlock-keyring and be prompted for a password. Don't do this with the version that contains your password.

You can replace None with the name of your keyring, e.g. 'session', if you want to unlock one that isn't the default.

I'm having a hard time testing this properly, so please let me know if it doesn't work and I'll take a look at it right away. Also let me know if it does work :-)

This works definitely!!

After much trial and error I found that the old feisty package "pam-keyring" still contains the "pam-keyring-tool" which you can use to unlock keyrings from the command line. Ubuntu took the tool out of the package after the feisty release, perhaps for security reasons???

Its here:-

wget https://launchpad.net/ubuntu/+archive/primary/+files/pam-keyring_0.0.8.orig.tar.gz

unpack it where you want, then do:-

./configure
make

you DON'T make install because you don't want it to upgrade the package at any point.

then edit to the post login config file rc.local to look like this:-

sudo gedit /etc/rc.local 

exec echo ENTER_YOUR_PASSWORD_HERE | /PATH_TO_PAM_KEYRING_TOOL/pam-keyring-tool --keyring=login -u -s

exit 0

hey presto!

Thanks to Stefano! His answer got me halfway there, but I found the method, by default, only works when running the python script from the local machine. If you're running locally, you have access to the Gnome keyring. I wanted to be able to run his script via an SSH session, but kept receiving "gnomekeyring.IOerror", because the keyring wasn't accessible. After much googling, I found the solution @ https://ask.fedoraproject.org/en/question/45246/error-communicating-with-gnome-keyring-daemon-in-ssh-session/

To distill that page down to just the most pertinent part that applies to this situation, add the following to your .bashrc script.

# Export $DBUS_SESSION_BUS_ADDRESS when connected via SSH to enable access
# to gnome-keyring-daemon.
if [[ -n $SSH_CLIENT ]]; then
    export $(cat /proc/$(pgrep "gnome-session" -u "$USER")/environ | grep -z "DBUS_SESSION_BUS_ADDRESS=")
fi

It's worth nothing that the grep pattern provided in the link didn't work for me, so the one I have above is slightly different.