[Linux-disciples] Roll your own 'addgroup'

[Stephen R Laniel]

On a bunch of the flavors of Linux I use at work, they don't
have an 'addgroup' command, which -- in Debian -- gives us
nice syntactic sugar like so:

sudo addgroup username groupname

which adds 'username' to 'groupname'. Instead we have to do

sudo usermod -G group1,group2,...,groupN,groupname username

where group1,...groupN are the groups that the user already
belonged to; if any of them are missing, usermod removes the
user from the missing group(s). To get the 'addgroup'
function, one has to do things like so:

sudo usermod -G `groups |sed 's/ /,/g'`,groupname username

Does anyone know of a shorter way -- a la 'adduser' -- to do
this in more stripped-down Linuxes?

-- 
Stephen R. Laniel
steve at laniels.org
Cell: +(617) 308-5571
http://laniels.org/
PGP key: http://laniels.org/slaniel.key
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