iwmap.sh

#!/bin/bash

#
# ----------------------------------------------------------------------------
# "THE BEER-WARE LICENSE" (Revision 42):
# guelfoweb@gmail.com wrote this file. As long as you retain this notice you
# can do whatever you want with this stuff. If we meet some day, and you think
# this stuff is worth it, you can buy me a beer in return Gianni 'guelfoweb' Amato
# ----------------------------------------------------------------------------
#

#-------------------#
WLAN="wlan0"        # <- Interface type
LOGFILE="iwmap.log" # <- Logfile name
SLEEP=10        # <- Delay in seconds
SU="sudo"       # <- Super User
#-------------------#

TS=`date --utc --date now +%s`
LOGTMP=".iwmap_$TS.tmp"
FUCK="/dev/null"

start(){
    SCAN=`$SU iwlist $WLAN scanning 2> $FUCK | egrep 'Channel|Address|ESSID|Encryption|Group Cipher' | sed -e 's/Cell [0-9]* - Address: //g' \
                        -e 's/Channel://g' \
                        -e 's/Frequency://g' \
                        -e 's/GHz//g' \
                        -e 's/(Channel [0-9]*)//g' \
                        -e 's/Encryption key://g' \
                        -e 's/ESSID://g' \
                        -e 's/Group Cipher : //g' \
                        -e 's/^ *//g'`

    for i in $SCAN;
    do
        echo -n $i | sed '/^\([0-9A-Z][0-9A-Z]:\)\{5\}[0-9A-Z][0-9A-Z]$/{x;p;x;}' >> $LOGTMP; echo -n "," >> $LOGTMP
    done

    if [ ! -f $LOGFILE ]; then > $LOGFILE; fi

    tail -n +2 $LOGTMP 2> $FUCK | sed 's/,$//g'| while read LINE;
        do {
            if [ ! "$LINE" = "" ]; then
                ESSID=`echo "$LINE" | cut -d\" -f2 | sed 's/,/ /g'`
                MACADDR=`echo $LINE | cut -d\, -f1`
                CHANNEL=`echo $LINE | cut -d\, -f2`
                FREQ=`echo $LINE | cut -d\, -f3`
                KEY=`echo $LINE | cut -d\, -f4`
                ESSID=`echo $LINE | awk -F  "\"" '{print $2}' | sed 's/,/ /g'`
                ENC=`echo "$LINE" | awk -F  "\"" '{print $3}' | awk -F  "," '{print $2}'`
                if [ "$ENC" = "" ]; then ENC="----"; fi
                FOUND="$MACADDR,$CHANNEL,$FREQ,$KEY,$ENC,$ESSID"
                DUPLICATE=`echo $FOUND | cut -d\, -f2,4,5,6`
                GREPLINE=`cut -d\, -f2,4,5,6 $LOGFILE | grep "$DUPLICATE"`
                if [ -z "$GREPLINE" ]; then
                    echo -e "$MACADDR \t $CHANNEL \t $FREQ \t $KEY \t $ENC \t $ESSID"
                    echo $FOUND >> $LOGFILE
                fi
            fi
            }
        done

    rm $LOGTMP 2> $FUCK
}

RES="BEGIN"
echo -e "MACADDRESS \t\t CH \t FREQ \t KEY \t ENCR \t ESSID"
echo -e "---------- \t\t -- \t ---- \t --- \t ---- \t -----"
while [ $RES != "END" ]; do
    start
    sleep $SLEEP
done