Script to create dummy files with dates in past. Created to test GFS backup rotation

dummyFileCreator.sh

#!/bin/bash

# Script to create dummy files with dates in past
# Count of months and weeks must not be greater than 99, count of days must not be greater than 999

### CONFIG BEGIN ###

# Count of files to create, including current month, week and day
MONTHS=12
WEEKS=10
DAYS=14

# Day of week (1..7); 1 is Monday for weekly files
WEEKDAY=7

# Put date into file. 1 - Yes, 0 - No
PUTDATE=0

# Time for newly created files
HH="03"
MM="00"

### CONFIG END ###

if [ ! -d "./dummy/monthly" ] || [ ! -d "./dummy/weekly" ] || [ ! -d "./dummy/daily" ]; then
    mkdir -p ./dummy/{monthly,weekly,daily}
fi

# This month
THISMONTH=$(date +"%Y%m")01
# This week
case ${WEEKDAY} in
    1) THISWEEK=$(date -d "last Monday" +"%Y%m%d");;
    2) THISWEEK=$(date -d "last Tuesday" +"%Y%m%d");;
    3) THISWEEK=$(date -d "last Wednesday" +"%Y%m%d");;
    4) THISWEEK=$(date -d "last Thursday" +"%Y%m%d");;
    5) THISWEEK=$(date -d "last Friday" +"%Y%m%d");;
    6) THISWEEK=$(date -d "last Saturday" +"%Y%m%d");;
    7) THISWEEK=$(date -d "last Sunday" +"%Y%m%d");;
    *) echo "Wrong WEEKDAY"; exit 1;;
esac
# This day
TODAY=$(date +"%Y%m%d")

# Counter
CNT=0

# Month cycle
while [ ${CNT} -lt ${MONTHS} ]; do
#    echo $(date -d "${THISMONTH} - ${CNT} month" +"%Y%m%d")T${HH}:${MM}
    touch -d $(date -d "${THISMONTH} - ${CNT} months" +"%Y-%m-%d")T${HH}:${MM} ./dummy/monthly/$(printf "%.2d" ${CNT})-months
    [ ${PUTDATE} -eq 1 ] && echo $(date -d "${THISMONTH} - ${CNT} month" +"%Y%m%d")T${HH}:${MM} > ./dummy/monthly/$(printf "%.2d" ${CNT})-months
    CNT=$((${CNT}+1))
done

# Reset counter
CNT=0

# Week cycle
while [ ${CNT} -lt ${WEEKS} ]; do
#    echo $(date -d "${THISWEEK} - ${CNT} weeks" +"%Y%m%d")T${HH}:${MM}
    touch -d $(date -d "${THISWEEK} - ${CNT} weeks" +"%Y-%m-%d")T${HH}:${MM} ./dummy/weekly/$(printf "%.2d" ${CNT})-weeks
    [ ${PUTDATE} -eq 1 ] && echo $(date -d "${THISWEEK} - ${CNT} weeks" +"%Y%m%d")T${HH}:${MM} > ./dummy/weekly/$(printf "%.2d" ${CNT})-weeks
    CNT=$((${CNT}+1))
done

# Reset counter
CNT=0

# Day cycle
while [ ${CNT} -lt ${DAYS} ]; do
#    echo $(date -d "${TODAY} - ${CNT} days" +"%Y%m%d")T${HH}:${MM}
    touch -d $(date -d "${TODAY} - ${CNT} days" +"%Y-%m-%d")T${HH}:${MM} ./dummy/daily/$(printf "%.3d" ${CNT})-days
    [ ${PUTDATE} -eq 1 ] && echo $(date -d "${TODAY} - ${CNT} days" +"%Y%m%d")T${HH}:${MM} > ./dummy/daily/$(printf "%.3d" ${CNT})-days
    CNT=$((${CNT}+1))
done