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I want to create user with least privileges. Without home, without rights, without shell. How to do that? When I call useradd it creates user with home

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Did you even look at the manual for useradd? – Cylindric Dec 16 '11 at 16:33
I like the question. Even if some assume the problem so simple that a man useradd would suffice, I can imagine that there is more involved here and actually implicitly asked for. I cannot understand the downvote. – humanityANDpeace Dec 17 '13 at 11:49
man useradd 2>&1 | egrep -i 'dummy|rights' | wc -l gives 0, so this is a good question! – Tino Mar 16 at 10:42
up vote 8 down vote accepted

Per the man page, this command will create a user with no home directory, and no shell.

 useradd -M -s /bin/false <desired username>
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