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To set environment variables permanently in Linux, you need to add them to specific configuration files. This ensures that the variables are available in all sessions and after reboots.
Example
For Bash Shell:
Open the .bashrc file in your home directory: nano ~/.bashrc
Add your environment variables at the end of the file: export MY_VARIABLE="my_value"
Save the file and apply the changes: source ~/.bashrc
For All Users:
Open the /etc/environment file: sudo nano /etc/environment
Add your environment variables in the format VARIABLE=value: MY_VARIABLE="my_value"
Save the file and reboot your system to apply the changes.
For Zsh Shell:
Open the .zshrc file in your home directory: nano ~/.zshrc
Add your environment variables at the end of the file: export MY_VARIABLE="my_value"
Save the file and apply the changes: source ~/.zshrc
For Fish Shell:
Set a universal variable using set -Ux command: set -Ux MY_VARIABLE "my_value"
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