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cron-human.sh
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cron-human.sh
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#!/bin/bash
set -o noglob
function Pretty_Time {
unset prettymin prettyhour prettydow prettymonth prettydom prettydays
if [[ "*" != ${DoM}]] && [["*" != ${DoW} ]]; then
if [[ "*" = ${DoM:0:1}]] || [["*" = ${DoW:0:1} ]]; then
prettydays="if it's"
else
prettydays="and"
fi
else
prettydays=""
fi
if [[ ${DoM} = "*" ]]; then
prettydom=""
else
prettydom="on "
Pretty_DoM
fi
if [[ ${Month} = "*" ]]; then
prettymonth=""
else
prettymonth="in "
Pretty_Month
fi
if [[ ${DoW} = "*" ]]; then
prettydow=""
else
prettydow="on "
Pretty_DoW
fi
if [[ "${min}" =~ ^[0-9]+$ ]] && [[ "${hour}" =~ ^[0-9]+$ ]]; then
if [[ $(echo ${min} | wc -m ) -le 2 ]]; then
prettymin="0${min}"
else
prettymin="${min}"
fi
if [[ $(echo ${hour} | wc -m ) -le 2 ]]; then
prettyhour="0${hour}"
else
prettyhour="${hour}"
fi
prettytime="At ${prettyhour}:${prettymin} ${prettydom} ${prettydays} ${prettydow} ${prettymonth}.";
prettytime=$(echo "$prettytime" | tr -s " ")
else
prettymin=""
Pretty_Min
if [[ ${hour} = "*" ]]; then
prettyhour=""
else
prettyhour="past "
Pretty_Hour
fi
prettytime="At ${prettymin} ${prettyhour} ${prettydom} ${prettydays} ${prettydow} ${prettymonth}."
prettytime=$(echo "$prettytime" | tr -s " ")
fi
}
function Pretty_DoW {
DAYS=(Sunday Monday Tuesday Wednesday Thursday Friday Saturday)
IFS=','
read -a dowArray <<< "${DoW}"
dowArrayLength=${#dowArray[*]}
dowsArray=()
for (( n=0; n < ${dowArrayLength}; n++)); do
if [[ ${dowArray[n]} = "*" ]]; then
tempdow="every day-of-week"
else
tempdow=""
values=()
curArray=${dowArray[n]}
while [[ "$curArray" =~ [0-9]+|[^0-9]+ ]]; do
values+=(${BASH_REMATCH[0]})
curArray="${curArray:${#BASH_REMATCH[0]}}"
done
firstValue=${values[0]}
if [[ "${firstValue}" =~ ^[0-9]+$ ]]; then
if [[ ${#values[*]} -eq 1 ]]; then
tempdow="${DAYS[${firstValue}]}"
elif [[ "${#values[*]}" -eq 3 ]] && [[ "${values[1]}" = "/" ]] && [[ "${values[2]}" =~ ^[0-9]+$ ]]; then
Digit=${values[2]}
F_Suffix
tempdow="every ${suffix} dow from ${DAYS[${firstValue}]} through ${DAYS[7]}"
elif [[ "${#values[*]}" -eq 3 ]] && [[ "${values[1]}" = "-" ]] && [[ "${values[2]}" =~ ^[0-9]+$ ]] && [[ "${values[2]}" -ge "${firstValue}" ]]; then
tempdow="every day-of-week ${DAYS[${firstValue}]} through ${DAYS[${values[2]}]}"
elif [[ "${#values[*]}" -eq 5 ]] && [[ "${values[1]}" = "-" ]] && [[ "${values[2]}" =~ ^[0-9]+$ ]] && [[ "${values[2]}" -ge "${firstValue}" ]] && [[ "${values[3]}" = "/" ]] && [[ "${values[4]}" =~ ^[0-9]+$ ]] && [[ 1 -le "${values[4]}" ]]; then
Digit=${values[4]}
F_Suffix
tempdow="every ${suffix} day-of-week from ${DAYS[${firstValue}]} through ${DAYS[${values[2]}]}"
fi
elif [[ "${#values[*]}" -eq 3 ]] && [[ "${values[1]}" = "/" ]] && [[ "${values[2]}" =~ ^[0-9]+$ ]] && [[ "${values[0]}" = "*" ]] ; then
Digit=${values[2]}
F_Suffix
tempdow="every ${suffix} day-of-week"
fi
fi
dowsArray+=($tempdow)
done
dowArrayLength=${#dowsArray[*]}
case ${dowArrayLength} in
0) prettydow+="" ;;
1) prettydow+="${dowsArray[0]}" ;;
2) prettydow+="${dowsArray[0]} and ${dowsArray[1]}" ;;
*)
prettydow+="${dowsArray[0]}, "
for (( n=0; n < ${dowArrayLength} - 1; n++)); do
prettydow+="${dowsArray[n]}, "
done
prettydow+=" and ${dowsArray[${dowArrayLength} - 1]}"
;;
esac
prettydow=${prettydow/every 1st/every}
prettydow=${prettydow/day-of-week every/every}
prettydow=${prettydow/, day-of-week/, }
prettydow=${prettydow/, and day-of-week/, and }
}
function Pretty_DoM {
IFS=','
read -a domArray <<< "${DoM}"
domArrayLength=${#domArray[*]}
domsArray=()
for (( n=0; n < ${domArrayLength}; n++)); do
if [[ ${domArray[n]} = "*" ]]; then
tempdom="every day-of-month"
else
tempdom=""
values=()
curArray=${domArray[n]}
while [[ "$curArray" =~ [0-9]+|[^0-9]+ ]]; do
values+=(${BASH_REMATCH[0]})
curArray="${curArray:${#BASH_REMATCH[0]}}"
done
firstValue=${values[0]}
if [[ "${firstValue}" =~ ^[0-9]+$ ]]; then
if [[ "${#values[*]}" -eq 1 ]]; then
tempdom="${firstValue}"
elif [[ "${#values[*]}" -eq 3 ]] && [[ "${values[1]}" = "/" ]] && [[ "${values[2]}" =~ ^[0-9]+$ ]]; then
Digit=${values[2]}
F_Suffix
tempdom="every ${suffix} day-of-month from ${firstValue} through 31"
elif [[ "${#values[*]}" -eq 3 ]] && [[ "${values[1]}" = "-" ]] && [[ "${values[2]}" =~ ^[0-9]+$ ]] && [[ "${values[2]}" -ge "${firstValue}" ]]; then
tempdom="every day-of-month ${firstValue} through ${values[2]}"
elif [[ "${#values[*]}" -eq 5 ]] && [[ "${values[1]}" = "-" ]] && [[ "${values[2]}" =~ ^[0-9]+$ ]] && [[ "${values[2]}" -ge "${firstValue}" ]] && [[ "${values[3]}" = "/" ]] && [[ "${values[4]}" =~ ^[0-9]+$ ]] && [[ 1 -le "${values[4]}" ]]; then
Digit=${values[4]}
F_Suffix
tempdom="every ${suffix} day-of-month from ${firstValue} through ${values[2]}"
fi
elif [[ "${#values[*]}" -eq 3 ]] && [[ "${values[1]}" = "/" ]] && [[ "${values[2]}" =~ ^[0-9]+$ ]] && [[ "${values[0]}" = "*" ]] ; then
Digit=${values[2]}
F_Suffix
tempdom="every ${suffix} day-of-month"
fi
fi
domsArray+=($tempdom)
done
domArrayLength=${#domsArray[*]}
prettydom+="day-of-month "
case ${domArrayLength} in
0) prettydom+="" ;;
1) prettydom+="${domsArray[0]}" ;;
2) prettydom+="${domsArray[0]} and ${domsArray[1]}" ;;
*)
prettydom+="${domsArray[0]}, "
for (( n=0; n < ${domArrayLength} - 1; n++)); do
prettydom+="${domsArray[n]}, "
done
prettydom+=" and ${domsArray[${domArrayLength} - 1]}"
;;
esac
prettydom=${prettydom/every 1st/every}
prettydom=${prettydom/day-of-month every/every}
prettydom=${prettydom/, day-of-month/, }
prettydom=${prettydom/, and day-of-month/, and }
}
function Pretty_Min {
IFS=','
read -a minArray <<< "${min}"
minArrayLength=${#minArray[*]}
minsArray=()
for (( n=0; n < ${minArrayLength}; n++)); do
if [[ ${minArray[n]} = "*" ]]; then
tempmin="every minute"
else
tempmin=""
values=()
curArray=${minArray[n]}
while [[ "$curArray" =~ [0-9]+|[^0-9]+ ]]; do
values+=(${BASH_REMATCH[0]})
curArray="${curArray:${#BASH_REMATCH[0]}}"
done
firstValue=${values[0]}
if [[ "${firstValue}" =~ ^[0-9]+$ ]]; then
if [[ "${#values[*]}" -eq 1 ]]; then
tempmin="${firstValue}"
elif [[ "${#values[*]}" -eq 3 ]] && [[ "${values[1]}" = "/" ]] && [[ "${values[2]}" =~ ^[0-9]+$ ]]; then
Digit=${values[2]}
F_Suffix
tempmin="every ${suffix} minute from ${firstValue} through 59"
elif [[ "${#values[*]}" -eq 3 ]] && [[ "${values[1]}" = "-" ]] && [[ "${values[2]}" =~ ^[0-9]+$ ]] && [[ "${values[2]}" -ge "${firstValue}" ]]; then
tempmin="every minute ${firstValue} through ${values[2]}"
elif [[ "${#values[*]}" -eq 5 ]] && [[ "${values[1]}" = "-" ]] && [[ "${values[2]}" =~ ^[0-9]+$ ]] && [[ "${values[2]}" -ge "${firstValue}" ]] && [[ "${values[3]}" = "/" ]] && [[ "${values[4]}" =~ ^[0-9]+$ ]] && [[ 1 -le "${values[4]}" ]]; then
Digit=${values[4]}
F_Suffix
tempmin="every ${suffix} minute from ${firstValue} through ${values[2]}"
fi
elif [[ "${#values[*]}" -eq 3 ]] && [[ "${values[1]}" = "/" ]] && [[ "${values[2]}" =~ ^[0-9]+$ ]] && [[ "${values[0]}" = "*" ]] ; then
Digit=${values[2]}
F_Suffix
tempmin="every ${suffix} minute"
fi
fi
minsArray+=($tempmin)
done
minArrayLength=${#minsArray[*]}
prettymin+="minute "
case ${minArrayLength} in
0) prettymin+="" ;;
1) prettymin+="${minsArray[0]}" ;;
2) prettymin+="${minsArray[0]} and ${minsArray[1]}" ;;
*)
prettymin+="${minsArray[0]}, "
for (( n=0; n < ${minArrayLength} - 1; n++)); do
prettymin+="${minsArray[n]}, "
done
prettymin+=" and ${minsArray[${minArrayLength} - 1]}"
;;
esac
prettymin=${prettymin/every 1st/every}
prettymin=${prettymin/minute every/every}
prettymin=${prettymin/, minute/, }
prettymin=${prettymin/, and minute/, and }
}
function Pretty_Hour {
IFS=','
read -a hourArray <<< "${hour}"
hourArrayLength=${#hourArray[*]}
hoursArray=()
for (( n=0; n < ${hourArrayLength}; n++)); do
if [[ ${hourArray[n]} = "*" ]]; then
temphour="every hour"
else
temphour=""
values=()
curArray=${hourArray[n]}
while [[ "$curArray" =~ [0-9]+|[^0-9]+ ]]; do
values+=(${BASH_REMATCH[0]})
curArray="${curArray:${#BASH_REMATCH[0]}}"
done
firstValue=${values[0]}
if [[ "${firstValue}" =~ ^[0-9]+$ ]]; then
if [[ "${#values[*]}" -eq 1 ]]; then
temphour="${firstValue}"
elif [[ "${#values[*]}" -eq 3 ]] && [[ "${values[1]}" = "/" ]] && [[ "${values[2]}" =~ ^[0-9]+$ ]]; then
Digit=${values[2]}
F_Suffix
temphour="every ${suffix} hour from ${firstValue} through 23"
elif [[ "${#values[*]}" -eq 3 ]] && [[ "${values[1]}" = "-" ]] && [[ "${values[2]}" =~ ^[0-9]+$ ]] && [[ "${values[2]}" -ge "${firstValue}" ]]; then
temphour="every hour ${firstValue} through ${values[2]}"
elif [[ "${#values[*]}" -eq 5 ]] && [[ "${values[1]}" = "-" ]] && [[ "${values[2]}" =~ ^[0-9]+$ ]] && [[ "${values[2]}" -ge "${firstValue}" ]] && [[ "${values[3]}" = "/" ]] && [[ "${values[4]}" =~ ^[0-9]+$ ]] && [[ 1 -le "${values[4]}" ]]; then
Digit=${values[4]}
F_Suffix
temphour="every ${suffix} hour from ${firstValue} through ${values[2]}"
fi
elif [[ "${#values[*]}" -eq 3 ]] && [[ "${values[1]}" = "/" ]] && [[ "${values[2]}" =~ ^[0-9]+$ ]] && [[ "${values[0]}" = "*" ]] ; then
Digit=${values[2]}
F_Suffix
temphour="every ${suffix} hour"
fi
fi
hoursArray+=($temphour)
done
hourArrayLength=${#hoursArray[*]}
prettyhour+="hour "
case ${hourArrayLength} in
0) prettyhour+="" ;;
1) prettyhour+="${hoursArray[0]}" ;;
2) prettyhour+="${hoursArray[0]} and ${hoursArray[1]}" ;;
*)
prettyhour+="${hoursArray[0]}, "
for (( n=0; n < ${hourArrayLength} - 1; n++)); do
prettyhour+="${hoursArray[n]}, "
done
prettyhour+=" and ${hoursArray[${hourArrayLength} - 1]}"
;;
esac
prettyhour=${prettyhour/every 1st/every}
prettyhour=${prettyhour/hour every/every}
prettyhour=${prettyhour/, hour/, }
prettyhour=${prettyhour/, and hour/, and }
}
function Pretty_Month {
MONTHS=(ZERO January February March April May June July August September October November December)
IFS=','
read -a monthArray <<< "${Month}"
monthArrayLength=${#monthArray[*]}
monthsArray=()
for (( n=0; n < ${monthArrayLength}; n++)); do
if [[ ${monthArray[n]} = "*" ]]; then
tempmonth="every month"
else
tempmonth=""
values=()
curArray=${monthArray[n]}
while [[ "$curArray" =~ [0-9]+|[^0-9]+ ]]; do
values+=(${BASH_REMATCH[0]})
curArray="${curArray:${#BASH_REMATCH[0]}}"
done
firstValue=${values[0]}
if [[ "${firstValue}" =~ ^[0-9]+$ ]]; then
if [[ "${#values[*]}" -eq 1 ]]; then
tempmonth="${MONTHS[${firstValue}]}"
elif [[ "${#values[*]}" -eq 3 ]] && [[ "${values[1]}" = "/" ]] && [[ "${values[2]}" =~ ^[0-9]+$ ]]; then
Digit=${values[2]}
F_Suffix
tempmonth="every ${suffix} month from ${MONTHS[${firstValue}]} through ${MONTHS[12]}"
elif [[ "${#values[*]}" -eq 3 ]] && [[ "${values[1]}" = "-" ]] && [[ "${values[2]}" =~ ^[0-9]+$ ]] && [[ "${values[2]}" -ge "${firstValue}" ]]; then
tempmonth="every month ${MONTHS[${firstValue}]} through ${MONTHS[${values[2]}]}"
elif [[ "${#values[*]}" -eq 5 ]] && [[ "${values[1]}" = "-" ]] && [[ "${values[2]}" =~ ^[0-9]+$ ]] && [[ "${values[2]}" -ge "${firstValue}" ]] && [[ "${values[3]}" = "/" ]] && [[ "${values[4]}" =~ ^[0-9]+$ ]] && [[ 1 -le "${values[4]}" ]]; then
Digit=${values[4]}
F_Suffix
tempmonth="every ${suffix} month from ${MONTHS[${firstValue}]} through ${MONTHS[${values[2]}]}"
fi
elif [[ "${#values[*]}" -eq 3 ]] && [[ "${values[1]}" = "/" ]] && [[ "${values[2]}" =~ ^[0-9]+$ ]] && [[ "${values[0]}" = "*" ]] ; then
Digit=${values[2]}
F_Suffix
tempmonth="every ${suffix} month"
fi
fi
monthsArray+=($tempmonth)
done
monthArrayLength=${#monthsArray[*]}
case ${monthArrayLength} in
0) prettymonth+="" ;;
1) prettymonth+="${monthsArray[0]}" ;;
2) prettymonth+="${monthsArray[0]} and ${monthsArray[1]}" ;;
*)
prettymonth+="${monthsArray[0]}, "
for (( n=0; n < ${monthArrayLength} - 1; n++)); do
prettymonth+="${monthsArray[n]}, "
done
prettymonth+=" and ${monthsArray[${monthArrayLength} - 1]}"
;;
esac
prettymonth=${prettymonth/every 1st/every}
prettymonth=${prettymonth/month every/every}
prettymonth=${prettymonth/, month/, }
prettymonth=${prettymonth/, and month/, and }
}
function F_Suffix {
case ${Digit} in
1) suffix="${Digit}st" ;;
2) suffix="${Digit}nd" ;;
3) suffix="${Digit}rd" ;;
*) suffix="${Digit}th" ;;
esac
}
echo "1-2/2,3 4-5/14,15 16 12 7" | egrep -v "^#|^$"| while read min hour DoM Month DoW CMD; do
export crontime=$(printf "%s %s %s %s %s\n" "$min" "$hour" "$DoM" "$Month" "$DoW")
Pretty_Time
echo ""
echo "CronTime is ${crontime}"
echo "${prettytime}"
done