Install multiple packages via bash script with dnf - bash

Question

I'm currently writing a bash script which should install all the software that I need. The process looks promising so far: First, I write a "software-list.txt" file which contains all dependencies for multiple distros. Afterwards bash split these values into an array and reads the corresponding value out of it. Finally the script should combine the distro package manager name (e.g. dnf, if I'm using Fedora Linux) with the operator ("install") with the arguments (which are the software packages).One last info: All variable names which don't appear in the source code, we're defined beforehand
The script looks like this:
One last info: All variable names which don't appear in the source code, were defined beforehand
case "$DISTRO_NAME" in
"Fedora")
PROGRAMM="dnf"
CSV_INDEX=0;;
"Debian")
PROGRAMM="apt-get"
CSV_INDEX=1;;
esac
# Read all required packages
while IFS= read -r line
do
IFS=','
LINE=($line)
if [ $CURR_LINE_INDEX -gt 1 ] && [ $CURR_LINE_INDEX -lt $LINE_COUNT ]
then
ARGUMENTS+="${LINE[$CSV_INDEX]} "
elif [ $CURR_LINE_INDEX -eq $LINE_COUNT ]
then
ARGUMENTS+="${LINE[$CSV_INDEX]}"
fi
CURR_LINE_INDEX=$((CURR_LINE_INDEX+1))
done < "software-list.txt"
# Run installation script
$PROGRAMM $OPERATOR $ARGUMENTS
However, whenever I run the script, the command is correct. But the output is always the same "couldn't find any match for packagex packagey"

Answer 1

I followed Jetchisel's advice and did a shellcheck. How is it now?
#!/bin/bash
case "$DISTRO_NAME" in
"Fedora")
PROGRAMM="dnf"
CSV_INDEX=0;;
"Debian")
PROGRAMM="apt-get"
CSV_INDEX=1;;
esac
# Read all required packages
while IFS= read -r -a line
do
IFS=','
LINE=("${line[#]}")
if [ "$CURR_LINE_INDEX" -gt 1 ] && [ "$CURR_LINE_INDEX" -lt "$LINE_COUNT" ]
then
ARGUMENTS+="${LINE[$CSV_INDEX]} "
elif [ "$CURR_LINE_INDEX" -eq "$LINE_COUNT" ]
then
ARGUMENTS+="${LINE[$CSV_INDEX]}"
fi
CURR_LINE_INDEX=$((CURR_LINE_INDEX+1))
done < "software-list.txt"
# Run installation script
"$PROGRAMM $OPERATOR $ARGUMENTS"