Environment Variable Manager

View and control environment variables available to shell processes. Supports listing all variables, querying specific values, and temporary variable assignment.

Usage

env-tool [options]

Common Operations

• List all environment variables with values
• Show value of a specific variable (e.g. PATH, HOME, USER)
• Check if a variable is set without showing its value
• Run a command with modified environment

Examples

# List all environment variables
env-tool

# Show a specific variable
env-tool | grep PATH

# Check variable exists
env-tool | grep ^HOME=