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In case you made changes to .bashrc and bash profiles and something went wrong, you may want to revert to the default bash profile. Here's how to reset these to Debian 12 defaults:

Contents

  1. Backup Existing Files
  2. Copy Default Files
  3. Set Permissions
  4. Apply Changes
  5. Optional: Automate Bash Profile restore defaults

Backup Existing Files

First, create a backup of your current configuration files: 

cd /home/[user]
mkdir bash_backup
cp .bashrc .profile .bash_logout bash_backup/

Copy Default Files

Copy the default configuration files from /etc/skel/. This directory contains the default files that Debian uses when creating new users: 

cp /etc/skel/.bashrc /home/[user]/
cp /etc/skel/.profile /home/[user]/
cp /etc/skel/.bash_logout /home/[user]/

Set Permissions

Set the correct ownership and permissions for the configuration files: 

chown [user]:[user] /home/[user]/.bashrc
chown [user]:[user] /home/[user]/.profile
chown [user]:[user] /home/[user]/.bash_logout
chmod 644 /home/[user]/.bashrc
chmod 644 /home/[user]/.profile
chmod 644 /home/[user]/.bash_logout

Apply Changes

To apply the changes, either: Log out and log back in, or source the new .bashrc file directly: 

source ~/.bashrc

If you've made any custom modifications to your PATH or other environment variables in these files, you'll need to add them back manually after reviewing your backup files.

Optional: Automate Bash Profile restore defaults

?BashProfileReset Debian 12 Utility Script is published at : https://github.com/digitalxs/BashProfileReset

This a Debian 12 Utility Script to revert a bash profile on Debian 12 to defaults and recreates all the steps described above but also checks for errors and creates backup of the previous bash profile and sets proper permissions of files related to the bash profile automatically.

  1. Download the script: 

wget -v https://github.com/digitalxs/BashProfileReset/raw/refs/heads/main/reset-bash-profile.sh
  1. Make the script executable: 

chmod +x reset-bash-profile.sh

3. Run the script with sudo, providing the target username: 

sudo ./reset-bash-profile.sh [user]

What the Script Does:

  1. Creates a timestamped backup directory in the user home folder
  2. Backs up existing .bashrc, .profile, and .bash_logout files
  3. Copies default configuration files from /etc/skel/
  4. Sets appropriate ownership and permissions
  5. Provides instructions for applying changes

Note: It's advised to check source code before executing script. Check source code here:

Important Notes

  1. Replace [user] with your actual username in all commands
  2. If you've made custom modifications to your PATH or other environment variables, you'll need to review your backup files and manually restore those changes
  3. Your original configuration files will be preserved in the bash_backup directory

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