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furrofurry
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232
asngecko
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232
asngecko
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#!/usr/bin/env bash
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# -----------------------------------------------------------------------------
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# asngecko – Swiss-army script for fetching IPv4 / IPv6 prefixes for ASNs
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# -----------------------------------------------------------------------------
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# Author: <your-name>
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# License: MIT
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# -----------------------------------------------------------------------------
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# FEATURES
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# • Accept single/multiple ASNs (-a) or a file (-l)
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# • IPv4-only (-4), IPv6-only (-6) or both (default)
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# • Custom WHOIS servers – global (-s) or per family (--server4 / --server6)
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# • Output to console (default) or file(s):
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# -o FILE → FILE.ipv4 / FILE.ipv6 (when both families)
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# --output4 FILE → explicit IPv4 path
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# --output6 FILE → explicit IPv6 path
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# • Formats: CIDR (default), CSV, JSON
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# • De-duplicate / sort (-u)
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# • Throttle between WHOIS look-ups (-t SEC)
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# • Quiet mode (-q) for cron/CI
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# -----------------------------------------------------------------------------
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set -euo pipefail
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SCRIPT_NAME="${0##*/}"
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VERSION="1.2.0"
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# ────────────────────────────────────────────────────────────────────────────────
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# Defaults
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WHOIS_SERVER_V4="whois.radb.net"
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WHOIS_SERVER_V6="whois.ripe.net"
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IP_VERSION="both" # 4 | 6 | both
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OUTPUT_DEST="console" # console | file
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OUTPUT_FILE_BASE="" # base name without family suffix
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OUTPUT_FILE_V4="" # explicit IPv4 file path (optional)
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OUTPUT_FILE_V6="" # explicit IPv6 file path (optional)
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OUTPUT_FORMAT="cidr" # cidr | csv | json
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UNIQ=false
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QUIET=false
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THROTTLE=0
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ASN_INPUT=()
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ASN_FILE=""
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# ────────────────────────────────────────────────────────────────────────────────
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print_msg() { $QUIET || echo "$*" >&2; }
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usage() {
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cat << EOF
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$SCRIPT_NAME $VERSION – fetch IP ranges for Autonomous Systems
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Usage:
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$SCRIPT_NAME -a AS15169 [options]
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$SCRIPT_NAME -a "AS15169 AS16509" [options]
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$SCRIPT_NAME -a AS15169 -q [more options] | your-special-command
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$SCRIPT_NAME -l list.txt [options]
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Options:
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-a, --asn "AS… AS…" Space-separated ASNs (quote the list)
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-l, --list FILE File with ASNs, one per line
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-4 IPv4 only
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-6 IPv6 only
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-b, --both Both families (default)
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-s, --server HOST WHOIS server for both families
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--server4 HOST WHOIS server for IPv4 (default $WHOIS_SERVER_V4)
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--server6 HOST WHOIS server for IPv6 (default $WHOIS_SERVER_V6)
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-o, --output FILE Base file name (adds .ipv4 / .ipv6 if needed)
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--output4 FILE Explicit IPv4 output path (overrides -o)
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--output6 FILE Explicit IPv6 output path (overrides -o)
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-c, --console Print to stdout (default when no -o/--outputX)
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-f, --format FMT cidr|csv|json (default: cidr)
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-u, --uniq De-duplicate & sort prefixes
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-t, --throttle SEC Sleep SEC between ASN queries
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-q, --quiet Suppress progress output
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-h, --help Show this help & exit
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Examples:
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$SCRIPT_NAME -a AS1234 | grep 120.0.0.0/24
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# Google IPv6 to file
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$SCRIPT_NAME -a AS15169 -6 -o google_v6.txt
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# Separate destinations in one call
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$SCRIPT_NAME -a "AS15169 AS32934" -46 \\
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--output4 /srv/v4/all.txt \\
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--output6 /srv/v6/all.txt
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EOF
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}
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# ────────────────────────────────────────────────────────────────────────────────
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# Parse options (GNU getopt for long opts)
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PARSED=$(getopt \
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-o "a:l:46bs:o:cf:uqht:" \
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--long "asn:,list:,both,server:,server4:,server6:,output:,output4:,output6:,console,format:,uniq,quiet,help,throttle:" \
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-- "$@") || { usage; exit 1; }
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eval set -- "$PARSED"
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while true; do
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case "$1" in
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-a|--asn) ASN_INPUT+=($2); shift 2 ;;
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-l|--list) ASN_FILE="$2"; shift 2 ;;
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-4) IP_VERSION="4"; shift ;;
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-6) IP_VERSION="6"; shift ;;
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-b|--both) IP_VERSION="both"; shift ;;
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-s|--server) WHOIS_SERVER_V4="$2"; WHOIS_SERVER_V6="$2"; shift 2 ;;
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--server4) WHOIS_SERVER_V4="$2"; shift 2 ;;
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--server6) WHOIS_SERVER_V6="$2"; shift 2 ;;
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-o|--output) OUTPUT_DEST="file"; OUTPUT_FILE_BASE="$2"; shift 2 ;;
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--output4) OUTPUT_DEST="file"; OUTPUT_FILE_V4="$2"; shift 2 ;;
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--output6) OUTPUT_DEST="file"; OUTPUT_FILE_V6="$2"; shift 2 ;;
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-c|--console) OUTPUT_DEST="console"; shift ;;
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-f|--format) OUTPUT_FORMAT="$2"; shift 2 ;;
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-u|--uniq) UNIQ=true; shift ;;
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-t|--throttle) THROTTLE="$2"; shift 2 ;;
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-q|--quiet) QUIET=true; shift ;;
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-h|--help) usage; exit 0 ;;
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--) shift; break ;;
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*) echo "Unknown option $1" >&2; usage; exit 1 ;;
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esac
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done
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# ────────────────────────────────────────────────────────────────────────────────
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# Collect ASNs
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if [[ -n "$ASN_FILE" ]]; then
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[[ -f "$ASN_FILE" ]] || { echo "File $ASN_FILE not found." >&2; exit 1; }
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mapfile -t FILE_ASNS < <(grep -Eo 'AS?[0-9]+' "$ASN_FILE")
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ASN_INPUT+=("${FILE_ASNS[@]}")
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fi
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[[ ${#ASN_INPUT[@]} -gt 0 ]] || { echo "No ASNs supplied." >&2; usage; exit 1; }
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# Normalize
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NORMALISED=()
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for asn in "${ASN_INPUT[@]}"; do
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[[ $asn =~ ^AS[0-9]+$ ]] && NORMALISED+=("$asn") || NORMALISED+=("AS${asn#AS}")
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done
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ASN_INPUT=("${NORMALISED[@]}")
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print_msg "ASNs: ${ASN_INPUT[*]}"
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print_msg "IP family: $IP_VERSION"
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# ────────────────────────────────────────────────────────────────────────────────
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# Fetch helpers
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fetch_prefixes() {
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local asn="$1" fam="$2" server="$3"
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if [[ $fam == 4 ]]; then
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whois -h "$server" -- "-i origin $asn" |
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grep -Eo '([0-9]{1,3}\.){3}[0-9]{1,3}/[0-9]+' || true
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else
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whois -h "$server" -- "-i origin $asn" |
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awk '/route6:/ {print $2}' || true
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fi
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}
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RANGES_V4=()
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RANGES_V6=()
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for asn in "${ASN_INPUT[@]}"; do
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if [[ $IP_VERSION == 4 || $IP_VERSION == both ]]; then
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mapfile -t tmp < <(fetch_prefixes "$asn" 4 "$WHOIS_SERVER_V4")
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RANGES_V4+=("${tmp[@]}")
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fi
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if [[ $IP_VERSION == 6 || $IP_VERSION == both ]]; then
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mapfile -t tmp < <(fetch_prefixes "$asn" 6 "$WHOIS_SERVER_V6")
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RANGES_V6+=("${tmp[@]}")
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fi
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(( THROTTLE > 0 )) && sleep "$THROTTLE"
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done
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# De-dup / sort
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dedup_sort() { mapfile -t "$1" < <(printf '%s\n' "${!1}" | sort -u); }
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$UNIQ && { dedup_sort RANGES_V4; dedup_sort RANGES_V6; }
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# ────────────────────────────────────────────────────────────────────────────────
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# Formatters
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format_cidr() { printf '%s\n' "$@"; }
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format_csv() {
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local fam="$1"; shift
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for cidr in "$@"; do
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printf '%s,%s\n' "$cidr" "$fam"
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done
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}
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format_json() {
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jq -R -s -c 'split("\n")[:-1]' <<< "$(printf '%s\n' "$@")"
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}
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# Decide where to write & actually write
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write_output() {
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local content="$1" fam="$2"
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# Resolve file path when saving
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local file=""
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case "$fam" in
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v4) file="$OUTPUT_FILE_V4" ;;
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v6) file="$OUTPUT_FILE_V6" ;;
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esac
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if [[ -z $file && $OUTPUT_DEST == file ]]; then
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file="$OUTPUT_FILE_BASE"
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[[ $IP_VERSION == both ]] && file+=".$fam"
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fi
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if [[ $OUTPUT_DEST == file || -n $file ]]; then
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echo "$content" > "$file"
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print_msg "Saved $fam → $file"
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else
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echo "$content"
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fi
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}
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# ────────────────────────────────────────────────────────────────────────────────
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# Emit IPv4
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if [[ $IP_VERSION == 4 || $IP_VERSION == both ]]; then
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case $OUTPUT_FORMAT in
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cidr) write_output "$(format_cidr "${RANGES_V4[@]}")" v4 ;;
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csv) write_output "$(format_csv 4 "${RANGES_V4[@]}")" v4 ;;
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json) write_output "$(format_json "${RANGES_V4[@]}")" v4 ;;
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esac
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fi
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# Emit IPv6
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if [[ $IP_VERSION == 6 || $IP_VERSION == both ]]; then
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case $OUTPUT_FORMAT in
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cidr) write_output "$(format_cidr "${RANGES_V6[@]}")" v6 ;;
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csv) write_output "$(format_csv 6 "${RANGES_V6[@]}")" v6 ;;
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json) write_output "$(format_json "${RANGES_V6[@]}")" v6 ;;
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esac
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fi
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exit 0
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21
install.sh
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21
install.sh
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#!/usr/bin/env bash
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#
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# Copy asngecko to /usr/local/bin and make it executable.
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#
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set -euo pipefail
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SRC="${1:-./asngecko}"
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DEST="/usr/local/bin/asngecko"
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if [[ ! -f "$SRC" ]]; then
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echo "Error: '$SRC' not found." >&2
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exit 1
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fi
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echo "Installing asngecko to $DEST …"
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install -Dm755 "$SRC" "$DEST" # -D: create dirs as needed, -m755: chmod +x
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echo "Done. Type 'asngecko --help' to verify."
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echo syncing file system
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sudo sync
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echo done.
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18
uninstall.sh
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18
uninstall.sh
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#!/usr/bin/env bash
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#
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# Remove /usr/local/bin/asngecko
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set -euo pipefail
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DEST="/usr/local/bin/asngecko"
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if [[ -f "$DEST" ]]; then
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echo "Removing $DEST …"
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rm -f "$DEST"
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echo "Uninstalled."
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echo syncing file system...
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sudo sync
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echo done
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else
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echo "Nothing to do – $DEST not found."
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fi
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