file2resp.sh

#!/bin/bash
# Why? Education & zero redis-cli dependecy
# (it is a shame, however, that this functionality isn't a part of redis-cli... PR on the way)
HOST=127.0.0.1
PORT=6379

if [ $# -lt "2" ]
then
    echo "Call a Redis command with its last argument being file contents"
    echo "Usage: $0 <Redis command> <keys and arguments for command> <payload>"
    echo
    echo "Example: calling '$0 SET foo bar.txt' will set the key 'foo'  with the contents of the file 'bar.txt'"
    exit 1
fi

POS=0
RESP=
for ARG;
do
    POS=$(($POS + 1))
    if [ $POS != "$#" ]
    then
        RESP="$RESP\$${#ARG}\r\n$ARG\r\n"
    else
        if [ -a $ARG ]
        then
            SIZE=`cat $ARG | wc -c`
            RESP="*$POS\r\n$RESP\$$SIZE\r\n"
        else
            echo "File not found: $ARG"
            exit 1
        fi
    fi
done

TEMP="/tmp/$BASHPID.tmp"
echo -n -e $RESP > $TEMP
cat $ARG >> $TEMP
echo -n -e "\r\n" >> $TEMP
nc $HOST $PORT < $TEMP
rm $TEMP