Initial commit: Add bash-helper.sh with comprehensive documentation

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2025-10-27 20:19:45 -07:00
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# bash-buddy # Bash Buddy
CLI assistant for impromptu bash scripting help 🚀 CLI assistant for impromptu bash scripting help
## Description
Interactive bash command helper that uses `fzf` to browse common bash commands and their options. Perfect for when you need a quick reminder of command flags and usage without digging through man pages.
## Features
- 🔍 **Interactive Search** - Browse commands with fzf fuzzy finder
- 📖 **Command Descriptions** - Clear explanations for each command
- 🎯 **Flag Filtering** - Search for specific command options
- 🎨 **Color-Coded Output** - Easy-to-read terminal output
- 📚 **Smart Help** - Works with both built-in and external commands
-**Quick Access** - Fast command reference at your fingertips
## Dependencies
```bash
# fzf - Fuzzy finder (required)
sudo apt install fzf # Ubuntu/Debian
brew install fzf # macOS
sudo pacman -S fzf # Arch
```
## Installation
```bash
# Clone the repository
git clone http://localhost:3030/trill-technician/bash-buddy.git
cd bash-buddy
# Make executable
chmod +x bash-helper.sh
# Optional: Install system-wide
sudo cp bash-helper.sh /usr/local/bin/bash-helper
# Or add to your PATH
echo 'export PATH="$HOME/bash-buddy:$PATH"' >> ~/.bashrc
source ~/.bashrc
```
## Usage
```bash
./bash-helper.sh
```
### Workflow
1. **Launch** - Run the script
2. **Browse** - Use arrow keys to navigate commands
3. **Select** - Press Enter to choose a command
4. **Filter** - Optionally enter a keyword to filter flags
5. **View** - See all available flags for the command
### Example Session
```
$ ./bash-helper.sh
> ls:List directory contents
cd:Change the current directory
pwd:Print the name of the current working directory
cp:Copy files and directories
mv:Move or rename files and directories
...
Command: ls
Description: List directory contents
Filter flags (optional): size
Flags for ls:
-s, --size
print the allocated size of each file, in blocks
-S sort by file size, largest first
--block-size=SIZE
with -l, scale sizes by SIZE when printing them
```
## Included Commands
The script includes help for these common bash commands:
| Command | Description |
|---------|-------------|
| `ls` | List directory contents |
| `cd` | Change the current directory |
| `pwd` | Print working directory |
| `cp` | Copy files and directories |
| `mv` | Move or rename files |
| `rm` | Remove files or directories |
| `mkdir` | Create directories |
| `rmdir` | Remove empty directories |
| `grep` | Search text patterns |
| `find` | Search for files |
| `echo` | Display text |
## Customization
### Adding More Commands
Edit the `COMMANDS` array in `bash-helper.sh`:
```bash
COMMANDS=(
"command-name:Description of what it does"
"wget:Download files from the web"
"curl:Transfer data with URLs"
"tar:Archive files"
# Add your own...
)
```
### Changing Colors
Modify the color variables at the top of the `show_flags()` function:
```bash
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[0;33m'
NC='\033[0m' # No Color
```
## How It Works
1. **Command List** - Defines an array of common bash commands with descriptions
2. **FZF Selection** - Presents commands in an interactive fuzzy finder
3. **Help Extraction** - Retrieves flag information from:
- Built-in commands using `help`
- External commands using `man` pages
4. **Filtered Output** - Optionally filters flags based on your search term
## Tips
- Use partial matching in fzf (type any part of command name)
- Filter flags to find specific options quickly
- Add your most-used commands to the array
- Combine with aliases for even faster access
```bash
# Add to ~/.bashrc
alias bh='bash-helper.sh'
```
## Contributing
Feel free to:
- Add more commands to the default list
- Improve flag extraction logic
- Enhance the user interface
- Fix bugs or improve documentation
## License
MIT License - feel free to modify and distribute
## Author
Created as a quick reference tool for bash command-line work
---
**Pro Tip**: Bookmark common flag patterns you discover, or add them as comments in the script for quick reference!
Executable
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#!/bin/bash
show_help() {
echo "Usage: bash-helper [keyword]"
echo "
Searches for a keyword in a list of common bash commands and their explanations."
echo "
Options:"
echo " -h, --help Show this help message."
}
show_flags() {
CMD_NAME=$1
FILTER=$2
# Colors
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[0;33m'
NC='\033[0m' # No Color
echo -e " ${YELLOW}Flags for $CMD_NAME:${NC}"
if type "$CMD_NAME" | grep -q "shell builtin"; then
if [ -n "$FILTER" ]; then
help "$CMD_NAME" | grep -E ' -' | grep -i "$FILTER"
else
help "$CMD_NAME" | grep -E ' -'
fi
elif command -v $CMD_NAME &> /dev/null; then
if [ -n "$FILTER" ]; then
man "$CMD_NAME" | col -b | grep -E ' -' | grep -i "$FILTER"
else
man "$CMD_NAME" | col -b | grep -E ' -'
fi
else
echo -e " ${RED}Could not find help for $CMD_NAME${NC}"
fi
}
COMMANDS=(
"ls:List directory contents"
"cd:Change the current directory"
"pwd:Print the name of the current working directory"
"cp:Copy files and directories"
"mv:Move or rename files and directories"
"rm:Remove files or directories"
"mkdir:Create a new directory"
"rmdir:Remove an empty directory"
"grep:Print lines matching a pattern"
"find:Search for files in a directory hierarchy"
"echo:Display a line of text"
)
FZF_COMMAND=$(printf "%s\n" "${COMMANDS[@]}" | fzf --height 40% --border --preview 'echo {}' --preview-window=up:1:wrap)
if [ -n "$FZF_COMMAND" ]; then
CMD=${FZF_COMMAND%%:*}
EXP=${FZF_COMMAND#*:}
echo "Command: $CMD"
echo "Description: $EXP"
read -p "Filter flags (optional): " FILTER
show_flags "$CMD" "$FILTER"
fi