here is an excellent article to do that:
https://macmule.com/2014/05/04/submit-user-information-from-ad-into-the-jss-at-login-v2/
here is the script :
#!/bin/sh
####################################################################################################
#
# More information: http://macmule.com/2014/05/04/submit-user-information-from-ad-into-the-jss-at-login-v2/
#
# GitRepo: https://github.com/macmule/SubmitUsernameAtReconForLDAPLookup
#
# License: http://macmule.com/license/
#
####################################################################################################
# Get the logged in users username
loggedInUser=`/bin/ls -l /dev/console | /usr/bin/awk '{ print $3 }'`
echo "Running recon for $loggedInUser `date`..."
# Run recon, submitting the users username which as of 8.61+ can then perform an LDAP lookup
sudo jamf recon -endUsername $loggedInUser
echo "Finished running recon for $loggedInUser `date`..."