get_ip.sh

This is a script for quickly obtaining local IP addresses in termux. Tested on termux. Current version v0.1.

Features

• Get IPv4 addresses of all network interfaces
• Display network interface names and corresponding IP addresses in a clear format
• Automatically check if ifconfig command is available

Usage

CNB:

wget https://cnb.cool/SDCOM/shit/-/git/raw/main/script/get_ip.sh && sudo chmod +x ./get_ip.sh && sudo ./get_ip.sh

Github:

wget https://github.com/SDCOM-0415/shit/raw/refs/heads/main/script/get_ip.sh && sudo chmod +x ./get_ip.sh && sudo ./get_ip.sh

After running, the script will display all network interfaces with IPv4 addresses in the format: interface_name: IP_address

Script Content

#!/bin/bash

echo "Get IP Version: v0.1"
echo "Author: SDCOM"
echo "CNB Project URL: https://cnb.cool/SDCOM/shit/-/blob/main/script/get_ip.sh"
echo "GitHub Project URL: https://github.com/SDCOM-0415/shit/blob/main/script/get_ip.sh"

# Script function: Get IP addresses of all network interfaces and output in specified format
# Output format: interface_name: IP_address

# Check if ifconfig command is available
if ! command -v ifconfig &> /dev/null; then
    echo "Error: ifconfig command is not available, please install net-tools package"
    exit 1
fi

# Get all network interface names
interfaces=$(ifconfig | grep -E '^[a-zA-Z0-9]+:' | awk -F: '{print $1}')

# Iterate through each interface and get its IP address
for interface in $interfaces; do
    # Get IPv4 address
    ip_addr=$(ifconfig $interface | grep -oP 'inet \K\d+\.\d+\.\d+\.\d+')
    
    # If the interface has an IP address, output it
    if [ ! -z "$ip_addr" ]; then
        echo "$interface: $ip_addr"
    fi
done

exit 0

Working Principle

1. Check if ifconfig command is installed on the system
2. Use ifconfig to get all network interface names
3. Iterate through each interface and extract its IPv4 address
4. Output interface names and IP addresses in the specified format

Dependencies

• net-tools package (provides ifconfig command)

Notes

• If ifconfig command is not installed, the script will prompt to install the net-tools package
• The script only displays interfaces with IPv4 addresses; interfaces without IP addresses will not be shown
• This script is mainly designed for termux environment but can also be used on other Linux systems

Project Repository

CNB: https://cnb.cool/SDCOM/shit/-/blob/main/script/get_ip.sh

Github: https://github.com/SDCOM-0415/shit/blob/main/script/get_ip.sh

© Author

SDCOM