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Group Exist Scripting

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# 1  
Old 01-16-2010
Group Exist Scripting
Hey People,

I've got a question! How can i write a function in a script which is looking for if a group exist and if not, that the group "users" is the standard group..I know that i have to use "grep" und "if-else"..I will be very happy for answers Smilie

Greetz
Ali
# 2  
Old 01-16-2010
You can only grep the group file if your machine is not hooked up to nis+ or ldap or something. On linux you could do something like this:
Code:
newgrp="somegroup"
if ! getent group $newgroup >/dev/null; then
  newgroup=users
fi

On HP-UX you can use grget instead of getent group, so it depends what tool you should use. I am sure there are other methods too.
# 3  
Old 01-17-2010
@Scrutinizer: Thank you for this very helpful answer Smilie
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