uh-recon-ip-to-nrich

#!/usr/bin/bash
# Turn a single IP or list containing IPs
# into input for 'nrich', and produce output.
# Should also accept input via pipe.
# Ignores non-IPs in input
# 2024/gad

# Config
NRICH="/usr/bin/nrich"                # Nrich cli name
IN="$*"                               # May turn out to be pipe
DATESTAMP=$(date "+%Y%m%d")

# If via pipe
if [ ! -t 0 ]; then
  read -r IN  
fi

# If no args
if [ -z "$IN" ];
then
  head -7 $0 | tail -6          # Helpful header
  echo -e "$0 <file_with_IPs>\n"
  exit
fi

# Ok you got me this is just a wrapper around a Perl one-liner :P
OUT=$(cat "$1" | perl -ne 'print ("\n$&") if (/\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}/g);')
SUM=$(echo "$OUT" | md5sum | sed 's/ .*//g') 
TMP="$0.tmp.$SUM"
echo "$OUT" > "/tmp/$TMP"
$NRICH "/tmp/$TMP"         # Directly output and end
sleep 0.5
rm "/tmp/$TMP"