#!/bin/bash # # Bash utility for getting specific network info # Author: Jake Meyer # Github: https://github.com/jakewmeyer # currentVersion="1.11.1" configuredClient="" ## This function determines which http get tool the system has installed and returns an error if there isnt one getConfiguredClient() { if command -v curl &>/dev/null ; then configuredClient="curl" elif command -v wget &>/dev/null ; then configuredClient="wget" elif command -v fetch &>/dev/null ; then configuredClient="fetch" else echo "Error: This tool reqires either curl, wget, or fetch to be installed." return 1 fi } ## Allows to call the users configured client without if statements everywhere httpGet() { case "$configuredClient" in curl) curl -A curl -s "$@";; wget) wget -qO- "$@";; fetch) fetch -o "...";; esac } # Parse arguments passed + help formatting usage() { echo "Geo" echo "Description: Provides quick access for wan, lan, router, dns, mac, and ip geolocation data" echo "Usage: geo [flag]" echo " -w Returns WAN IP" echo " -l Returns LAN IP(s)" echo " -r Returns Router IP" echo " -d Returns DNS Nameserver" echo " -m Returns MAC address for interface. Ex. eth0" echo " -g Returns Current IP Geodata" echo "Examples:" echo " geo -g" echo " geo -wlrdgm eth0" echo "Custom Geo Output =>" echo "[all] [query] [city] [region] [country] [zip] [isp]" echo "Example: geo -a 8.8.8.8 -o city,zip,isp" echo " -o [options] Returns Specific Geodata" echo " -a [address] For specific ip in -s" echo " -v Returns Version" echo " -h Returns Help Screen" echo " -u Updates Bash-Snippets" exit } # Displays version number version() { echo "Version $currentVersion"; } # Fetches WAN ip address wan_search() { dig +short myip.opendns.com @resolver1.opendns.com } # Fetches current LAN ip address lan_search() { if [ "$(uname)" = "Darwin" ]; then ifconfig | grep -Eo 'inet (addr:)?([0-9]*\.){3}[0-9]*' | grep -Eo '([0-9]*\.){3}[0-9]*' | grep -v '127.0.0.1' elif [ "$(uname -s)" = "Linux" ]; then ip addr show | grep -Eo 'inet (addr:)?([0-9]*\.){3}[0-9]*' | grep -Eo '([0-9]*\.){3}[0-9]*' | grep -v '127.0.0.1' else echo "OS not supported" exit 1 fi } # Fetches Router ip address router_search() { if [ "$(uname)" = "Darwin" ]; then netstat -rn | grep default | head -1 | awk '{print$2}' elif [ "$(uname -s)" = "Linux" ]; then ip route | grep ^default'\s'via | head -1 | awk '{print$3}' else echo "OS not supported" exit 1 fi } # Fetches DNS nameserver dns_search() { if [ "$(uname)" = "Darwin" ]; then grep -i nameserver /etc/resolv.conf |head -n1|cut -d ' ' -f2 elif [ "$(uname -s)" = "Linux" ]; then cat /etc/resolv.conf | grep -i ^nameserver | cut -d ' ' -f2 else echo "OS not supported" exit 1 fi } # Fetches MAC address of mac_search() { if [ "$(uname)" = "Darwin" ]; then ifconfig "$MAC" | grep -o -E '([[:xdigit:]]{1,2}:){5}[[:xdigit:]]{1,2}' elif [ "$(uname -s)" = "Linux" ]; then ip addr show "$MAC" | grep -o -E '([[:xdigit:]]{1,2}:){5}[[:xdigit:]]{1,2}' | grep -v ff: else echo "OS not supported" exit 1 fi } # Fetches current geodata based on ip geodata_search() { httpGet "http://ip-api.com/line/?fields=query,city,region,country,zip,isp" } # Fetches specific geodata based on args specific_geo() { if [ "$OPTIONS" = "all" ]; then httpGet "http://ip-api.com/line/${ADDRESS}?fields=query,city,region,country,zip,isp" else httpGet "http://ip-api.com/line/${ADDRESS}?fields=${OPTIONS}" fi } update() { # Author: Alexander Epstein https://github.com/alexanderepstein # Update utility version 1.2.0 # To test the tool enter in the defualt values that are in the examples for each variable repositoryName="Bash-Snippets" #Name of repostiory to be updated ex. Sandman-Lite githubUserName="alexanderepstein" #username that hosts the repostiory ex. alexanderepstein nameOfInstallFile="install.sh" # change this if the installer file has a different name be sure to include file extension if there is one latestVersion=$(httpGet https://api.github.com/repos/$githubUserName/$repositoryName/tags | grep -Eo '"name":.*?[^\\]",'| head -1 | grep -Eo "[0-9.]+" ) #always grabs the tag without the v option if [[ $currentVersion == "" || $repositoryName == "" || $githubUserName == "" || $nameOfInstallFile == "" ]];then echo "Error: update utility has not been configured correctly." >&2 exit 1 elif [[ $latestVersion == "" ]];then echo "Error: no active internet connection" >&2 exit 1 else if [[ "$latestVersion" != "$currentVersion" ]]; then echo "Version $latestVersion available" echo -n "Do you wish to update $repositoryName [Y/n]: " read -r answer if [[ "$answer" == "Y" || "$answer" == "y" ]] ;then cd ~ || { echo 'Update Failed' ; exit 1 ; } if [[ -d ~/$repositoryName ]]; then rm -r -f $repositoryName || { echo "Permissions Error: try running the update as sudo"; exit 1; } ; fi git clone "https://github.com/$githubUserName/$repositoryName" || { echo "Couldn't download latest version" ; exit 1; } cd $repositoryName || { echo 'Update Failed' ; exit 1 ;} git checkout "v$latestVersion" 2> /dev/null || git checkout "$latestVersion" 2> /dev/null || echo "Couldn't git checkout to stable release, updating to latest commit." chmod a+x install.sh #this might be necessary in your case but wasnt in mine. ./$nameOfInstallFile "update" || exit 1 cd .. rm -r -f $repositoryName || { echo "Permissions Error: update succesfull but cannot delete temp files located at ~/$repositoryName delete this directory with sudo"; exit 1; } else exit 1 fi else echo "$repositoryName is already the latest version" fi fi } checkInternet() { echo "GET http://google.com HTTP/1.0\n\n" | nc google.com 80 > /dev/null 2>&1 # query google with a get request if [ $? -eq 0 ]; then #check if the output is 0, if so no errors have occured and we have connected to google successfully return 0 else echo "Error: no active internet connection" >&2 #sent to stderr return 1 fi } # Option parsing "controller" optspec="uwlrdm:go:a:vh*:" while getopts "$optspec" optchar do case "${optchar}" in w) wan_search ;; l) lan_search ;; r) router_search ;; d) dns_search ;; m) MAC=$OPTARG mac_search;; g) getConfiguredClient && checkInternet && geodata_search || exit 1 ;; a) ADDRESS=$OPTARG ;; o) getConfiguredClient && checkInternet && OPTIONS=$OPTARG specific_geo || exit 1 ;; v) version ;; h) usage ;; u) getConfiguredClient && checkInternet && update || exit 1 ;; *) usage ;; esac done # Makes geo command default to help screen for usability if [ $# -eq 0 ]; then usage exit 0 elif [[ $1 == "update" ]];then getConfiguredClient && checkInternet && update || exit 1 elif [[ $1 == "help" ]];then usage exit 0 fi