There are two things about arrays that sometimes confuse me:

[0]: They start at zero
[1]: They end at one less than the length

Arrays start at ZERO, Morty, ZERO. God, I (burp) thought you would have figured that out by now. Lo-lo-look, I know you were taught that arrays start at one, but that's just (burp) fucking stupid Morty and if I ever find whoever started that shit I will literally drill the correct answer into their brain. And I don't mean "literally" as a literally unliteral exaggeration Morty, I mean (buuuurp) I will literally use a brain-altering power drill and get it into their fucking head that (burp) arrays start. at. zero.

StackOverflow locked my account. I'm hoping someone here might be kind enough to help me with a bash script I'm "bashing" my head with. Actually, it's zsh on MacOS if it makes any difference.

I have an input file. Four lines. No blank lines. Each of the four lines has two strings of text delimited by a tab. Each string on either side of the tab is either one word with no spaces or a bunch of words with spaces. Like this (using <tab> as a placeholder here on Devrant for where the tab actually is)

ABC<tab>DEF
GHI<tab>jkl mno pq
RST<tab>UV
wx<tab>Yz

I need to open and read the file, separate them into key-value pairs, and put them into an array for processing. I have this script to do that:

# Get input arguments
search_string_file="$1"
file_path="$2"

# Read search strings and corresponding names from the file and store in arrays
search_strings=()
search_names=()

# Read search strings and corresponding names from the file and store in arrays
while IFS= read -r line || [[ -n "$line" ]]; do
echo "Line: $line"
search_string=$(echo "$line" | awk -F'\t' '{print $1}')
name=$(echo "$line" | awk -F'\t' '{print $2}')
search_strings+=("$search_string")
search_names+=("$name")
done < "$search_string_file"

# Debug: Print the entire array of search strings
echo "Search strings array:"
for (( i=0; i<${#search_strings[@]}; i++ )); do
echo "[$i] ${search_strings[$i]} -- ${search_names[$i]}"
done

However, in the output, I get the following:

Line: ABC<tab>DEF
Line: GHI<tab>jkl mno pq
Line: RST<tab>UV
Line: wx<tab>Yz
Search strings array:
[0] --
[1] ABC -- DEF
[2] GHI -- jkl mno pq
[3] RST -- UV

That's it. I seem to be off by one because that last line...

Line: wx<tab>Yz

never gets added to the array. What I need it to be is:

[0] ABC -- DEF
[1] GHI -- jkl mno pq
[2] RST -- UV
[3] wx -- Yz

What am I doing wrong here?

Thanks.