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How would I obtain the Users and Groups listed under System Preferences from a Mac through the terminal?

I've tried

dscl . list /users
dscl . list /groups

But they give me a list of system-ish users as well. I just want the users and groups I would see if I went into System Preferences and viewed them. Any help would be much appreciated. Thanks in advance.

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up vote 3 down vote accepted

It's a bit more complicated than this, but for the most part the Users & Groups preference pane only deals with users and groups with IDs above 500. You can emulate this by filtering the lists that dscl generates. Here's a quick & dirty version, using awk to do the filtering:

dscl . -readall /Users UniqueID | awk '/^RecordName:/ {name=$2}; /^UniqueID: / {if ($2 > 500) print name}'
dscl . -readall /Groups PrimaryGroupID | awk '/^PrimaryGroupID:/ {id=$2}; /^RecordName: / {if (id > 500) print $2}'
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The first one worked, the second line didn't return anything at all not even Admin or Standard User as listed in System Preferences. – John Oct 5 '12 at 3:51
The second one is looking for groups, not users; if you haven't created any groups (other than the builtin system ones), it won't list anything. – Gordon Davisson Oct 5 '12 at 5:56
Thanks for the help. Is there any specific documentation related to this. You mentioned a quick and dirty version. Is there a better, perhaps shorter, more concise version? – John Oct 6 '12 at 3:45
I don't know of any documentation, and I'm not sure what additional complications (i.e. other criteria than ID number) there may be that this doesn't handle. A more complete version wouldn't be shorter, it'd probably be quite a bit longer. – Gordon Davisson Oct 6 '12 at 4:00
What would a more complete version do exactly? Thanks for all the information. – John Oct 7 '12 at 1:56

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