Use awk to print largest alphanumeric grep result and create variable next in sequence - bash

Question

I have a source file with the following information in it.
WABEL8499IPM101
WABEL8499IPM102
WABEL8499IPM103
WABEL8499IPM104
WABEL8499IPM105
WABEL8499IPM106
WABEL8499IPM107
WABEL8499IPM108
I need to be able to find the largest name in the sequence and then create a new variable with the next logical name in the sequence. I need to be able to create multiple if necessary. For example:
Use grep to search the file for WABEL8499IPM which shows all of the above results. I need to find WABEL8499IPM108 because it's the largest in the sequence and then create a new variable (how many depends on what the user inputs) with the value WABEL8499IPM109. If user inputs a quantity of 2 then I need both 109 and 110. My goal is to build a bash script to input the base name (without the last 3 digits), find the largest in the sequence and then output to a log file the next names in the sequence however many times the user needs.
I'm not really sure where to start. I can find all using grep but having difficulty finding only the largest value/sequence. The user will only input the base name because they won't know the last 3 digits. Currently I don't have any code that works.
SRCFILE="~/Desktop/deviceinfo.csv"
LOGDIR="~/Desktop/"
LOGFILE="$LOGDIR/DeviceNames.csv"
echo -e "\n"
echo "What is the base device name?"
read deviceName
echo "How many device names do you need?"
read quantityName
lines=$(grep -c "$deviceName" $SRCFILE)
echo -e "\n"
echo "There are $lines results."
deviceResults=$(grep -F "$deviceName" $SRCFILE)
echo -e "\n"
echo Device Name\'s Currently Enrolled:
echo "$deviceResults"
echo -e "\n"
echo "Your output file has been created."
CODE FOR CREATING OUTPUT FILE HERE
echo "$deviceName1" >> "$LOGFILE"
echo "$deviceName2" >> "$LOGFILE"
echo "$deviceName3" >> "$LOGFILE"
Would there be a way with this method to use a reference file for the input? For example if I had to research and create multiple names with different quantities could we use an input reference file for that so we don't have to type them each individually and run the script multiple times?

Answer 1

SRCFILE="~/Desktop/deviceinfo.csv"
LOGDIR="~/Desktop/"
LOGFILE="$LOGDIR/DeviceNames.csv"
# base name, such as "WABEL8499IPM"
device_name=$1
# quantity, such as "2"
quantityNum=$2
# the largest in sequence, such as "WABEL8499IPM108"
max_sequence_name=$(cat $SRCFILE | grep -o -e "$device_name[0-9]*" | sort --reverse | head -n 1)
# extract the last 3digit number (such as "108") from max_sequence_name
max_sequence_num=$(echo $max_sequence_name | rev | cut -c 1-3 | rev)
# creat a sequence of files starting from "WABEL8499IPM101" if there is not any "WABEL8499IPM".
if [ -z "$max_sequence_name" ];
then
max_sequence_name=device_name
max_sequence_num=100
fi
# create new sequence_name
# such as ["WABEL8499IPM109", "WABEL8499IPM110"]
array_new_sequence_name=()
for i in $(seq 1 $quantityNum);
do
cnum=$((max_sequence_num + i))
array_new_sequence_name+=($(echo $device_name$cnum))
done
#CODE FOR CREATING OUTPUT FILE HERE
#for fn in ${array_new_sequence_name[#]}; do touch $fn; done;
# write log
for sqn in ${array_new_sequence_name[#]};
do
echo $sqn >> $LOGFILE
done
Usage:
bash test.sh WABEL8499IPM 2
Result in the log file:
WABEL8499IPM109
WABEL8499IPM110
EDITED
The input reference file (input.txt) :
WABEL8499IPM,2
WABEL8555IPM,6
WABEL8444IPM,5
The driver shell script :
INPFIL="./input.txt"
PSRC="./test.sh"
cat $INPFIL | while read line;
do
device_name=`echo $line | cut -d "," -f 1`
quantity_num=`echo $line | cut -d "," -f 2`
bash $PSRC $device_name $quantity_num
done;

Answer 2

You can try
logdir="~/Desktop/"
srcfile="$logdir/deviceinfo.csv"
logfile="$logdir/DeviceNames.csv"
echo
read -p "What is the base device name? " deviceName
echo
read -p "How many device names do you need? " quantityName
echo
awk -v name="$deviceName" \
-v q="$quantityName" \
-v lelog="$logfile" '
$0 ~ "^"name {
sub(name,"")
a=a>$0?a:$0
}
END {
if ( a )
for ( i = 1 ; i <= q ; i++ )
print name ( a + i ) >> lelog
}
' "$srcfile"