MinimalBashrc

I'm the type of person who doesn't like fancy or redundant things. Here is my streamlined bashrc file containing only the things I really need and nothing else. Please get rid of anything you feel is unnecessary.

🚀 Key Features

⚙️ Kubernetes Integration

• Namespace Management: kns function for easy namespace switching
• Multi-cluster Support: ek function for kubeconfig switching
• Pod Utilities: ctn for container inspection, po for pod listing
• On-demand initialization: kinit_ns creates the default working namespace when requested
• Safety Features: Highlights dangerous default namespace usage

🔧 Git Enhancements

• Smart Aliases: gits, gitb, gitc, gitl for common operations
• Submodule Support: gitp pulls with automatic submodule updates
• Branch Comparison: headsgit compares local/remote/fetch heads
• Safety Warnings: Visual alerts for master/main branch usage
• Commit Helpers: Quick amend and change tracking functions

🎨 Intelligent Prompt

The custom prompt displays contextual information:

• 🌐/💻 Location indicator (VPS/Local)
• 💰 Bitcoin price (cached with short network timeouts)
• 📊 System stats (Docker containers, screen sessions)
• ⏰ Timestamp for debugging
• 🖥️ Hostname for multi-server workflows
• ☸️ Kubernetes context (highlighted if non-default)
• 📁 Namespace (highlighted if dangerous)
• 🌿 Git branch (highlighted if master/main)
• 💬 Last commit message (prevents wrong amends)
• 📂 Current directory

🛠️ Utility Functions

• Repository Sync: reposync for main→test repo synchronization
• Quick Navigation: cd1, cd2 for frequent directories
• Bashrc Management: editbash, sourcebash for quick config changes
• Central Python venvs: per-project virtualenvs in ~/.venvs with automatic activation
• System Monitoring: Docker and screen session counters

📋 Function Reference

Kubernetes Functions

kns [namespace]     # Switch to namespace or show current
kinit_ns            # Create DEFAULT_NS in the current cluster if needed
ek [config]         # Switch kubeconfig or show current
ctn <pod_name>      # List all containers in a pod
ns [args]           # List namespaces by creation time
po [args]           # List pods in current namespace

Git Functions

gitp [args]         # Git pull with submodule update
gitpush [args]      # Git push wrapper
gitchanges          # Show files changed in last commit
gitamend            # Amend to current commit (no edit)
headsgit            # Compare local/remote/fetch heads

Utility Functions

reposync [--delete] # Sync main repo to test repo (optionally delete missing files)
cd1                 # Navigate to main repository
cd2                 # Navigate to test repository
editbash            # Edit bashrc file
sourcebash          # Reload bashrc configuration

Python Virtualenv Functions

create_central_venv [name]    # Create and activate ~/.venvs/<name>
activate_central_venv <name>  # Activate an existing central venv
list_central_venvs            # List central venvs
central_venv_path [name]      # Print the central venv path

When a matching central venv exists, entering ~/project-name automatically activates ~/.venvs/project-name. Leaving the project deactivates only venvs that were auto-activated.

Useful Aliases

# Navigation
..                  # cd ..
...                 # cd ../..

# Enhanced ls
ll                  # ls -la (detailed list)
la                  # ls -A (show hidden)
l                   # ls -CF (classify)

# Git shortcuts
gits                # git status
gitb                # git branch
gitc                # git checkout
gitl                # git log --oneline

# Safe operations
cp, mv, rm          # Interactive mode by default (-i)

🔧 Installation & Setup

1. Backup your current bashrc:

   cp ~/.bashrc ~/.bashrc.backup

2. Copy the configuration:

   cp my_bashrc ~/.bashrc

3. Customize paths and sync settings (edit these in the file):

   # Update these paths to match your setup
   cd1() { cd /path/to/main_repo; }
   cd2() { cd /path/to/test_repo; }
   
   # Repository sync configuration
   LOCAL_REPO="/your/main-repo"
   REMOTE_REPO="/path/on/remote/host"
   HOST="user@hostname"
   SYNC_EXCLUDES=( ".git" "__pycache__" ".venv" )

4. Set your default context:

   export DEFAULT_CONTEXT="your_working_context"
   export DEFAULT_NS="your_working_namespace"

5. Reload your shell:

   source ~/.bashrc

6. Optional: create your default Kubernetes namespace:

   kinit_ns

7. Optional: create central Python virtualenvs:

   cd ~/my-python-project
   create_central_venv
   python -m pip install -r requirements.txt

   After the venv exists, future cd ~/my-python-project commands auto-activate it.

🖥️ Terminal Screenshots

Demo from terminal on macOS:

Another terminal example:

🔧 Customization

Colors

All colors are defined in the COLOR DEFINITIONS section. Modify these variables to match your terminal theme:

RED="\[\e[01;31m\]"
GREEN="\[\e[01;32m\]"
# ... etc

Prompt Components

Enable/disable prompt components by modifying the reload_ps() function. Comment out unwanted elements:

# local btc_format="${GREEN}(\$(get_btc_price))${RESET}"  # Disable BTC price

Platform Compatibility

• Linux: Works out of the box
• macOS: May need to adjust some commands (e.g., ls flags)
• WSL: Should work with minimal adjustments

🤝 Contributing

Feel free to suggest improvements or report issues. This configuration prioritizes:

1. Functionality over aesthetics
2. Performance over features
3. Clarity over cleverness

📝 Notes

• Colors are optimized for light terminal themes
• Bitcoin price requires curl and jq; failures return N/A or the last cached value
• Kubernetes functions require kubectl
• Some functions assume specific directory structures
• The prompt updates dynamically on each command
• Sourcing the file is passive: it does not create Kubernetes resources or change directories
• Central Python venv activation is passive: it only activates existing ~/.venvs/<project> environments and never creates them automatically

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Keep it minimal, keep it functional. ⚡