Pfthb

I need to activate a function through an If-statement, and THEN pass arguments to the function.

In this example I want to delete customer 4 and 5 at the same time. Previously, before having the If-statement, I would use "delete_customers 4 5" to do this. Now, I need to first make a selection out of multiple functions, and THEN pass this argument to the function.

How would I go about ASKING for arguments, and then PASSING them to a function when I'm already in the script?

I've tried using read and then using the output as a variable and putting it after the name of the function when it is called, but that does not work.

SELECTION=$'Enter the number of the function you would like to use: n1. 
Delete customersnn'

read -p "$SELECTION"

if [ "$REPLY" == "1" ]; then
 delete_customers
else
 echo "Function does not exist"
fi

And the corresponding function:

delete_customers () 

inputFile="input.csv"
tempFile="temp.csv"
outputFile="output.csv"

for i in "$@";
do
 awk -F ";" -v customerNr=$i '($1 != customerNR) print ' <input.csv> > 
 $tempFile && mv $tempFile "$inputFile"
done

mv "$inputFile" $outputFile

Sample input:

Customers
1
2
3 
4 
5

Sample output: (with argument 4 5)

Customers
1
2
3