+if [ -f /usr/bin/whoami ]; then
+ testuser=`/usr/bin/whoami`
+elif [ -f /usr/ucb/whoami ]; then
+ testuser=`/usr/ucb/whoami`
+elif [ -f /bin/whoami ]; then
+ testuser=`/bin/whoami`
+else
+ testuser=`id -un 2>/dev/null || echo ${LOGNAME:-${USERNAME:-${USER:-'UNKNOWN'}}}`