[add user] Testing done, some fixes made

Signed-off-by: Thiago Abdo <tja14@inf.ufpr.br>

hdd/adduser.sh

@@ -195,38 +195,38 @@ fi
 
 #See if exist the username that we are tryng to add with non local ID
 checkNotLocalName=$( cat /etc/passwd | cut -d':' -f1,3 | grep -v -e ":2....$" -e ":1....$" | grep -e "^$username:" )
-if [ -z "$checkNotLocalName" ]; then
+if [ -n "$checkNotLocalName" ]; then
     echo $0": Usuario não local com mesmo username"
     exit 22
 fi
 
 #See if exists the group name that we are trying to add with non local GID
 checkNotLocalGroupName=$( cat /etc/group | grep -v -e ":2....:" -e ":1....:" | grep -e "^$groupname:" )
-if [ -z "$checkNotLocalGroupName" ]; then
+if [ -n "$checkNotLocalGroupName" ]; then
     echo $0": Usuario não local com mesmo group name"
     exit 22
 fi
 
 checkName=$( cat /etc/passwd | cut -d':' -f1-3 | grep -e "^$username:" )
-if [ -z "$checkName" ]; then
+if [ -n "$checkName" ]; then
     remove_user "$checkName"
     echo $0": encontrei outro usuario local com o mesmo nome, devo remove-lo"
 fi
 
 checkID=$( cat /etc/passwd | cut -d':' -f1-3 | grep -e ":$uID$" )
-if [ -z "$checkID" ]; then
+if [ -n "$checkID" ]; then
     remove_user "$checkID"
     echo $0": encontrei outro usuario local com o mesmo id, devo remove-lo"
 fi
 
 checkGID=$( cat /etc/group | grep -e ":$gID:" )
-if [ -z "$checkGID" ]; then
+if [ -n "$checkGID" ]; then
     remove_group "$checkGID"
     echo $0": encontrei outro usuario local com o mesmo id de grupo, devo remove-lo"
 fi
 
 checkGName=$( cat /etc/group | grep -e "^$groupname:" )
-if [ -z "$checkGName" ]; then
+if [ -n "$checkGName" ]; then
     remove_group "$checkGName"
     echo $0": encontrei outro usuario local com o mesmo nome de grupo, devo remove-lo"
 fi