On 23/10/14 11:50, Nikos Andrikos wrote:
> What is the proper way to check that each member of the $RET list is a
> valid username and if not prompt the user to specify a new correct
> list?
This might be helpful:
# usage: if is_username_valid root; then echo yes; fi
is_username_valid () {
getent passwd -- "$1" >/dev/null
}
Regards,
S