Gfilui

With the following script I'm trying to create users,groups and password from a txt/cvs file.

Here is the script:

#!/bin/bash
set -xv
filein="file.csv"
IFS=$'n'
if [ ! -f "$filein" ]
then
 echo "Cannot find file $filein"
else
 groups=$(cut -d: -f 6 "$filein" | sed 's/ //')
 fullnames=$(cut -d: -f 1 "$filein")
 usernames=$(cut -d: -f 1 "$filein" | tr '[:upper:]' '[:lower:]' | awk 'print substr($1,1,1) $2')
fi

for group in $groups[*]
do
 grep -q "^$group" /etc/group ; (( x=$? ))
 if [ $x -eq 1 ]
 then
 groupadd "$group"
 fi
done

x=0
created=0
for user in $usernames[*]
do
 useradd -n -c $fullnames[$x] -g "$groups[$x]" $user 2> /dev/null
 if [ $? -eq 0 ]
 then
 (( created=created+1 ))
 fi
done

echo "$usernames[$x]" | passwd --stdin "$user" > /dev/null
echo "Complete. $created accounts have been created."

This morning I used shellchek on my script and I modify some of the code but I still get 2 problems.

One of the problem is that I'm getting an error from shellcheck saying:

In test.sh line 29:
useradd -n -c $fullnames[$x] -g "$groups[$x]" $user 2> /dev/null
 ^-- SC2086: Double quote to prevent globbing and word splitting.
 ^-- SC2086: Double quote to prevent globbing and word splitting.

The other problem I'm getting is when I'm trying to create passwords for the usernames( same as the username).

echo "$usernames[$x]" | passwd --stdin "$user" > /dev/null

Ubuntu doesn't find the command --stdin and It's been a while that Im looking for a solution but without result.

I'm just starting creating shell scripts, If you guys can please help me running this script would be amazing.

Thanks in advance.