Black screen and LightDM doesn’t unlock
Add this to your /etc/lightdm/lightdm.conf file:
Edit previous commands
fc is a shell builtin to list and edit previous commands in an editor.
In addition to editing a single line (which you can also do with
C-x C-e), it also allows you to edit and run several lines at the same time.
You use it like this:
List previous commands
List commands with date (in zsh)
You can add the date too:
You can edit a range of commands
The range can be relative to the current position, so the previous command is equivalent to:
If you save and exit, all commands are executed as a script, and it will be added to your history.
Prevent logoff from killing tmux sessions
Lately I’ve noticed that logging out of i3, intentionally or when i3 fails, would also kill any tmux or emacs sessions. This is extremely annoying.
This is caused by a new default in logind (systemd’s login) to kill user process on logoff.
You can revert this setting in your logind.conf (
Or only for a specific process (e.g., tmux):
Upload a temporary file
Sometimes you just need to copy/paste a file from a server, and copying from the terminal can be a hassle. These two services are command-line “pastebins” just one curl away:
Install Fortinet SSLVPN support for NetworkManager
UPM (Universidad Politécnica de Madrid) uses a propriatary VPN solution.
The instructions for GNU/Linux on their website involve downloading a specific client (
.tar.gz) and manually running it.
That works, but it is kind of a hassle.
A much more convenient alternative is installing this NetworkManager plugin:
Now you can simply add a new VPN connection in NetworkManager and manage it as you would any other connection.