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88 lines
2.6 KiB
Bash
88 lines
2.6 KiB
Bash
#!/usr/bin/env bash
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# A quick utility for checking if you're online
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# Checks interfaces, gateway, DNS, conntectivity
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# Licensed under MIT, (C) Alicia Sykes 2022
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# Colors and re-used string components
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pre_general='\033[1;96m'
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pre_success=' \033[1;92m✔'
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pre_failure=' \033[1;91m✗'
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post_string='\x1b[0m'
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# Checks if DNS gateway is online
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function aio_check-dns() {
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: >/dev/tcp/1.1.1.1/53 > /dev/null && \
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echo -e "${pre_success} DNS Online${post_string}" || \
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echo -e "${pre_failure} DNS Offline${post_string}"
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}
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# Checks if can ping default getway
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function aio_ping-gateway() {
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ping -q -w 1 -c 1 `ip r | grep default | cut -d ' ' -f 3` > /dev/null && \
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echo -e "${pre_success} Gateway Availible${post_string}" || \
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echo -e "${pre_failure} Gateway Unavailible${post_string}"
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}
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# Checks if can curl a URL
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function aio_check-url() {
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INTERNET_URL="${INTERNET_URL:-$1}"
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if [ -z "$(curl -Is $INTERNET_URL | head -n 1 2>&1 )" ]
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then
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echo -e "${pre_failure} Domains Unaccessible${post_string}"
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else
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echo -e "${pre_success} Domains Accessible${post_string}"
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fi
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}
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# Checks there are network interfaces
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function aio_check-interfaces() {
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for interface in $(ls /sys/class/net/ | grep -v lo); do
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if [[ $(cat /sys/class/net/$interface/carrier) = 1 ]]; then OnLine=1; fi
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done
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if ! [ $OnLine ]; then
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echo -e "${pre_failure} Interfaces not Configured${post_string}"
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else
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echo -e "${pre_success} Interfaces Configured${post_string}" > /dev/stderr
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fi
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}
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# Shows help menu
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function aio_help() {
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echo -e "${pre_general}Utility for checking connectivity status${post_string}"
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echo -e "\e[0;96mUsage:${post_string}"
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echo -e " \e[0;96m$ online${post_string}"
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}
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# Runs everything, prints output
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function aio_start() {
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if [[ $@ == *"--help"* ]]; then
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aio_help
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return
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fi;
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line="${pre_general}─────────────────────────${post_string}"
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echo -e ${line}
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echo -e "${pre_general}📶 Checking connection...${post_string}"
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echo -e ${line}
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aio_check-dns
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aio_ping-gateway
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aio_check-url 'https://duck.com'
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aio_check-interfaces
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echo -e ${line}
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}
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# Determine if file is being run directly or sourced
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([[ -n $ZSH_EVAL_CONTEXT && $ZSH_EVAL_CONTEXT =~ :file$ ]] ||
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[[ -n $KSH_VERSION && $(cd "$(dirname -- "$0")" &&
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printf '%s' "${PWD%/}/")$(basename -- "$0") != "${.sh.file}" ]] ||
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[[ -n $BASH_VERSION ]] && (return 0 2>/dev/null)) && sourced=1 || sourced=0
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# If script being called directly run immediatley, otherwise register aliases
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if [ $sourced -eq 0 ]; then
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aio_start $@
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else
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alias amionline=aio_start $@
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alias online=aio_start $@
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alias aio=aio_start $@
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fi
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