To set environment variables for KWin (the window manager for KDE Plasma), you typically need to modify certain configuration files or use command-line tools.
Here are a few steps to set environment variables for KWin:
1. **Modify the `startkde` script**:
- This script is responsible for starting the KDE Plasma session. You can add environment variables to this script.
- The script is usually located at `/usr/bin/startkde` or `/usr/lib/plasma-workspace/startkde`.
Example:
```sh
export MY_VARIABLE=value
exec /usr/bin/kwin_x11
```
2. **Using `.bashrc` or `.profile`**:
- You can add environment variables to your `.bashrc` or `.profile` file, which will be sourced when you log in.
Example:
```sh
export MY_VARIABLE=value
```
3. **Using `systemd` user services**:
- If you are using a systemd-based setup, you can create a systemd user service to set environment variables.
Example:
```sh
mkdir -p ~/.config/systemd/user
cat < ~/.config/systemd/user/myenv.service
[Unit]
Description=Set environment variables for KWin
[Service]
ExecStart=/usr/bin/env MY_VARIABLE=value
[Install]
WantedBy=default.target
EOF
systemctl --user enable myenv.service
systemctl --user start myenv.service
```
4. **Using KDE's System Settings**:
- KDE Plasma allows you to set environment variables through its System Settings.
- Navigate to `System Settings` > `Startup and Shutdown` > `Autostart`.
- Add a script that sets the environment variables.
Example script:
```sh
#!/bin/bash
export MY_VARIABLE=value
```
Make sure to make the script executable:
```sh
chmod +x /path/to/your/script.sh
```
After setting the environment variables, you may need to restart your session or your computer for the changes to take effect.