-ingroup vs --ingroup

Instead of:

sudo adduser --ingroup hadoopgroup hadoopuser

I did a:

sudo adduser -ingroup hadoopgroup hadoopuser

am OK to go? Or the single - will cause a problematic user.

1 Answer

adduser is a Perl script, using Getopt::Long. Unless explicitly told to do so, Getopt::Long will accept single-hyphen long options, and adduser doesn't tell it do so. So, -ingroup will work just as well as --ingroup.

Don't rely on this to work in the future, though.

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