dayls.sh

#!/bin/bash
#
# Author: @unfo
#
# Prints files for a given relative day
#
#  0 = today # this is also the default
# -1 = yesterday
# -2 = day before yesterday

DAY_1=0
if [ $# -eq 1 ]; then
	DAY_1=$1
fi

DAY_2=$(($DAY_1 + 1))

dtm_1=$(date -d "$DAY_1 day" +%Y-%m-%d)
dtm_2=$(date -d "$DAY_2 day" +%Y-%m-%d)

find . -type f -newermt $dtm_1 ! -newermt $dtm_2

# Example: 
# Prints all files from a week ago
# dayls.sh -7 | xargs ls -lth