GJStewart,
I am not finding anything in the DB that calls out the command line directly, however I know that if you PUSH a package to a machine, the command for SDClient.exe will show in the C:\Program Files (x86)\LANDesk\Shared Files\ServiceHost.log. Usually you have to copy it out of that folder to another location before you can open it, or it will tell you "Access Denied." The line in the log should look something like this.
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Wed, 09 Jul 2014 16:23:05 9188: Exec: Exec: Launch request <"C:\Program Files (x86)\LANDesk\LDClient\sdclient.exe" /p="http://LDMS95.BCString.local/ldlogon/install/windows/Firefox Setup 26.0.exe" /levels=4 /Hash=xcXegBw9PudnV0iTp99lbQ== /pkgid=6 /pkgname="Firefox" /FileListName="taskmanifest.LDMS95.9.6.ini" /FileListHash="2CHwdVVwR7Y7b4mezRCegA==" /exe /An /wan=25 /lan=75 /cmds="-ms" /taskid=9 /taskName="Firefox - 7/9/2014 4:22:23 PM" /core="LDMS95:10.14.111.75" /sad=50 /EnableVirtualAppShortcuts /enableloggedoffuserinstall /dmname="Standard push distribution" /dmtype=3> (sync 1, timeout 21600)
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Bryce.