Nk_user

Home

Description

The function nk_user() expects to be passed a domain name and returns the username associated with that domain. It uses grep -E to search for the domain in /etc/userdomains, and awk to print the second field (the username). If no domain name is provided, the script returns an error message.

Example

[root@cloudvpsserver ~]# nk_user nkern.net
nkern

Code

nk_user() {
# nk_user expects to be passed a domain name. Fail if not.
domain="$1"
if [ "$1" = "" ]; then
    echo "You must provide a domain name"
    return 0
fi

# Using grep -E to find the domain in userdatadomains.
# Need the ^ to denote that it's the start of the line and the : to end off the search. This helps prevent matching subdomains.
# And the docroot is the 2nd field in /etc/userdatadomains
grep -E "^$domain:" /etc/userdomains | awk '{print $2}'
}