deal.sh

#!/bin/bash

m_cnt=0
m_vln=0.0

t2_cnt=0
t2_vln=0.0

w_cnt=0
w_vln=0.0

t4_cnt=0
t4_vln=0.0

f_cnt=0
f_vln=0.0

while read date earning
do
    weekday=$(date -j -f '%Y-%m-%d' ${date} +'%A')
    case $weekday in
        Monday)
            m_cnt=$((m_cnt+1))
            m_vln=$(echo ${earning%\%} + $m_vln | bc)
            ;;
        Tuesday)
            t2_cnt=$((t2_cnt+1))
            t2_vln=$(echo ${earning%\%} + $t2_vln | bc)
            ;;
        Wednesday)
            w_cnt=$((w_cnt+1))
            w_vln=$(echo ${earning%\%} + $w_vln | bc)
            ;;
        Thursday)
            t4_cnt=$((t4_cnt+1))
            t4_vln=$(echo ${earning%\%} + $t4_vln | bc)
            ;;
        Friday)
            f_cnt=$((f_cnt+1))
            f_vln=$(echo ${earning%\%} + $f_vln | bc)
            ;;
        *)
            echo $weekday $earning
            ;;
    esac
done < <(cut -f 1,4 160213)

m_avg=$(echo "scale=2; $m_vln/$m_cnt" | bc)
echo "Mon: " $m_cnt $m_vln $m_avg
    
t2_avg=$(echo "scale=2; $t2_vln/$t2_cnt" | bc)
echo "Tue: " $t2_cnt $t2_vln $t2_avg

w_avg=$(echo "scale=2; $w_vln/$w_cnt" | bc)
echo "Wed: " $w_cnt $w_vln $w_avg

t4_avg=$(echo "scale=2; $t4_vln/$t4_cnt" | bc)
echo "Thu: " $t4_cnt $t4_vln $t4_avg

f_avg=$(echo "scale=2; $f_vln/$f_cnt" | bc)
echo "Fri: " $f_cnt $f_vln $f_avg