#!/usr/bin/env bash # TODO: # + trap exit signals to cleanup all temp files and cancel all jobs # + run in batches to prevent spawning way too many processes # + detect when piping into another application and suppress colors? # + temp file control (or none for no disk space)? # + command line options or env vars? # + --tlds "com,net,org" # + --max-concurrent-whois-jobs # + --avail-regex and --timeout-regex # suggested usage: ./check_domain | tee /tmp/chkdmn && sort /tmp/chkdmn # constants AVAIL_REGEX='^No match|^NOT FOUND|^Not fo|AVAILABLE|^No Data Fou|has not been regi|No entri' TIMEOUT_REGEX='^Timeout' COLOR_RESET="\x1b[0m" COLOR_GREEN="\x1b[32m" COLOR_YELLOW="\x1b[33m" COLOR_RED="\x1b[31m" TLDS=( \ '.com' '.net' '.org' '.eu' '.in' '.it' '.sk' '.ac' '.ae' '.af' '.ag' '.al' \ '.am' '.as' '.at' '.ax' '.be' '.bi' '.bo' '.by' '.bz' '.cc' '.cd' '.cf' '.cg' \ '.ch' '.ci' '.cl' '.cm' '.cn' '.co' '.cr' '.cx' '.cz' '.dk' '.dm' '.do' '.ec' \ '.ee' '.es' '.fi' '.fm' '.fo' '.ga' '.gd' '.gf' '.gg' '.gl' '.gp' '.gq' '.gr' \ '.gs' '.gt' '.gy' '.hk' '.hm' '.hn' '.ht' '.id' '.im' '.in' '.io' '.ir' '.is' \ '.je' '.ke' '.kg' '.kz' '.la' '.lc' '.li' '.lt' '.lu' '.lv' '.ly' '.me' '.mg' \ '.mk' '.ml' '.mn' '.mq' '.ms' '.mu' '.mw' '.mx' '.na' '.ne' '.ng' '.nl' '.nu' \ '.nz' '.pe' '.ph' '.pk' '.pl' '.pr' '.pt' '.pw' '.qa' '.ro' '.rs' '.ru' '.rw' \ '.sb' '.sc' '.sd' '.se' '.sh' '.si' '.sl' '.sr' '.st' '.su' '.sx' '.sg' '.tk' \ '.tl' '.to' '.tv' '.tw' '.ug' '.vc' '.ve' '.vg' '.vn' '.vu' '.ws' \ ) # check dependencies if command -v whois >/dev/null 2>&1; then : else echo "You need to install whois before proceeding!" exit 2 fi # check arguments if [ "$#" == "0" ]; then echo "You need to supply at least one argument!" exit 1 fi # main function check_domain() { local tmp local domain if [ "$#" == "0" ]; then echo "No domain specified." return fi domain="$1" # create a unique temporary file tmp=$(mktemp "${domain}_XXX") # dump whois output into temp file whois "$domain" > "$tmp" 2>&1 # check contents and output appropriately if grep -E -q "$AVAIL_REGEX" "$tmp" > /dev/null 2>&1; then echo -e "$COLOR_GREEN$domain / probably available$COLOR_RESET" elif grep -E -q "$TIMEOUT_REGEX" "$tmp" > /dev/null 2>&1; then echo -e "$COLOR_YELLOW$domain / timed out$COLOR_RESET" else echo -e "$COLOR_RED$domain / unavailable$COLOR_RESET" fi # cleanup rm "$tmp" } # iterate all provided domain names combined with all TLDs and check them # concurrently elements=${#TLDS[@]} while (( "$#" )); do for (( i=0;i<elements;i++ )); do check_domain "$1${TLDS[${i}]}" & done shift done wait