IRC Hilight Backlog

#!/bin/bash
#
# IRC Hilight Backlog by ed <irc.rizon.net>
# BSD licensed -- 2014-07-31 -- v1.0
#
# Must be run with the same user as ZNC.
# First argument (int) is day selector:
#   0: Hilights from today (default),
#   1: Hilights from one day ago...
#
# Line  17:     Replace /ed/ with /your-username/
# Lines 38-41:  Modify to fit your needs
#

[ "x$1" == "x" ] && d=0 || d=$1
dt=$(date +%Y%m%d --date="-$d day")
cd ~/.znc/users/ed/moddata/log
(
    ls -1 |
    grep "_$dt.log" |
    grep -v "#" |
    while read x
    do
        n=$(
            cat "$x" |
            grep -E "^...:..:... <ed> " -B1000 |
            wc -l
        )
        nn=$(
            cat "$x" |
            wc -l
        )
        n=$((nn-n))
        cat "$x" | tail -n $n
    done

grep -P \
"[Ll][Oo][Oo][Pp].?[Ss][Tt][Rr][Ee][Aa][Mm]|"\
"[Tt][Rr][Ii][Pp][Ff][Ll][Aa][Gg]|"\
"[^a-zA-Z0-9%<\x27]([Ee][Dd])([^a-zA-Z0-9%>]|$)|"\
"[^a-zA-Z0-9][oO][cC][vV]([^a-zA-Z0-9]|$)" \
--color=always *_$dt.log |
grep -vE "] \*\*\* ..i.s:"

) |
tee hil.tmp |
(
    cat
    cat hil.$dt
) |
sort |
uniq -u |
less -R

read -n 1 -r -p "Hide these messages next time? [y/N]: "
if [[ $REPLY =~ ^[Yy] ]]
then
    cp hil.tmp hil.$dt
else
    rm hil.tmp
fi