how to check real user id of login session ?

how can I see/check the real user id of current login session ?

id -r doesn't seems to work
beer9Asked:
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omarfaridCommented:
try

/usr/xpg4/bin/id -ur
0
beer9Author Commented:
it is still giving me effective user id, not the real user id..

bash-3.00# /usr/xpg4/bin/id -ur
0
bash-3.00# who am i
beer     pts/2        Oct 23 21:47    (192.168.0.2)
bash-3.00# whoami
root
bash-3.00#

0
TintinCommented:
You could do

echo $LOGNAME

or

who am i | awk '{print $1}'
0

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