bash scripting to add users - bash

Question

I created a bash script to read information such as username, group etc., from a text file and create users based on it in linux. The code seems to function properly and creates the users as desired. But the user information in the last line of the text file always gets misinterpreted. Even if i delete it then the next last line gets misinterpreted i.e., the text is read wrongly.
`
#!/bin/bash
userfile="users.txt"
IFS=$'\n'
if [ ! -f "$userfile" ]
then
echo "File does not exist. Specify a valid file and try again. "
exit
fi
groups=(`cut -f 4 "$userfile" | sed 's/ //'`)
fullnames=(`cut -f 1 "$userfile" | sed 's/,//' | sed 's/"//g'`)
username1=(`cut -f 1 "$userfile" |sed 's/,//' | sed 's/"//' | tr [A-Z] [a-z] | awk '{print substr($2,1,1) substr($3,1,1) substr($1,1,1)}'`)
username2=(`cut -f 4 "$userfile" | tr [A-Z] [a-z] | awk '{print substr($1,1,1)}'`)
i=0
n=${#username1[#]}
for (( q=0; q<n; q++ ))
do
usernames[$q]=${username1[$q]}"${username2[$q]}"
done
declare -a usernames
x=0
created=0
for user in ${usernames[*]}
do
adduser -c ${fullnames[$x]} -p 123456789 -f 15 -m -d /home/${groups[$x]}/$user -K LOGIN_RETRIES=3 -K PASS_MAX_DAYS=30 -K PASS_WARN_AGE=3 -N -s /bin/bash $user 2> /dev/null
usermod -g ${groups[$x]} $user
chage -d 0 $user
let created=$created+1
x=$x+1
echo -e "User $user created "
done
echo "$created Users created"
enter image description here`

Answer 1

#!/bin/bash
userfile="./users.txt"; # <-- Config
while read line; do
# FULL NAME
# Capture all between quotes as full name
fullname=$(printf '%s' "${line}" | sed 's/^"\(.*\)".*/\1/')
# Remove spaces and punctuations???:
fullname=$(printf '%s' "${fullname}" | tr -d '[:punct:][:blank:]')
# Right-side names:
partb=$(printf '%s' "${line}" | sed "s/^\".*\"//g")
# CODE 1, capture second row
code1=$(printf '%s' "${partb}" | cut -f 2 )
# CODE 2, capture third row
code2=$(printf '%s' "${partb}" | cut -f 3 )
# GROUP, capture fourth row
group=$(printf '%s' "${partb}" | cut -f 4 )
# Print only for report
echo "fullname: ${fullname}\n code 1: ${code1}\n code 2: ${code2}\n group: ${group}\n"
done <${userfile}
Maybe these are the fields that you want, now you have it in variables for manipulate them: $fullname, $code1, $code2 and $group.
Although maybe the fail that you observed was due to some misplaced quotation mark in the text file or the line breaks, on the attached screenshot I can see one missed quote.