Web search in Surf with history (with using Rofi)

wwwsearch.sh

#!/bin/dash

AGENT="Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.3) Gecko/20090913 Firefox/3.5.3"
#OPTS='-z 1.5 -u "$AGENT"'
OPTS="-z 1.8"
HISTORY=.rofi-wwwsearch-history


if [ "$1" = "" ]
then
    URL=`cat $HISTORY | rofi -hide-scrollbar -dmenu -p "Websearch: "`
    echo "$URL" | grep -e ^http || CLIP=https://$CLIP    
    echo "$URL" >> $HISTORY
else
    URL=$@
    echo "$@" | grep -e ^http && CLIP=https://$CLIP
    echo "$@" >> $HISTORY
fi
TMP=`tempfile`
cat $HISTORY | sort | uniq >> $TMP && mv $TMP $HISTORY
rm -f $TMP    

if [ "$URL" = "" ]
then
    exit 0
fi

/usr/bin/surf $OPTS "https://duckduckgo.com/?q=$URL"