Hey, I'm creating a custom useradd script, and I'm giving the option to add secondary groups. Basically what I want to do is ask for the name of the group, you type in the group you want to add, it assigns that group name to the variable $sgroup. Then the scripts asks if you want add another. If you say yes, then I want it to grab the next one you type in, and append it with a comma to the end of $sgroup.
So when all is said and done, if you have added three groups, then the value of $sgroup would be like this:
$sgroup="group1,group2,group3"
See what I mean, that way, when I'm doing the useradd command in my script, I can just use the -G option, and say, "-G $sgroup"
I'm trying to use a while loop to do it, but it doesn't seem to be working. How should I go about doing this?
I'll post my current code below, but you don't need to look at it if you don't want. It's kind of lengthy for such a simple thing. FYI, I know this code doesn't work, currently, if you choose to add another, it will just overwrite the old $sgroup with a new group name.
echo "Would you like to add any secondary groups to this account [y/n]:"
read cont
while [[ $cont = "y" || $cont = "yes" ]]
do
echo "Type the name of the group, or hit enter to list all available groups:"
read sgroup
if [[ $sgroup = "" ]]
then
awk -F: '{ print $1 }' /etc/group
echo "Type the name of the group:"
read sgroup
awk -F: '{ print $1 }' /etc/group | grep -qx $sgroup
while [ $? != "0" ]
do
echo "That group does not exist."
echo "Type the name of the group, or hit enter to list all available groups:"
read sgroup
if [[ $sgroup = "" ]]
then
awk -F: '{ print $1 }' /etc/group
echo "Type the name of the group:"
read sgroup
awk -F: '{ print $1 }' /etc/group | grep -qx $sgroup
fi
awk -F: '{ print $1 }' /etc/group | grep -qx $sgroup
done
else
awk -F: '{ print $1 }' /etc/group | grep -qx $sgroup
while [ $? != "0" ]
do
echo "That group does not exist."
echo "Type the name of the group, or hit enter to list all available groups:"
read sgroup
if [[ $sgroup = "" ]]
then
awk -F: '{ print $1 }' /etc/group
echo "Type the name of the group:"
read sgroup
awk -F: '{ print $1 }' /etc/group | grep -x $sgroup
fi
awk -F: '{ print $1 }' /etc/group | grep -x $sgroup
done
fi
echo "You have added $username to $sgroup. Add another? [y/n]:"
read cont
done