$ wget -c https://go.dev/dl/go1.18.4.linux-amd64.tar.gz
$ tar -C /usr/local -xzf go1.18.4.linux-amd64.tar.gz
$ export PATH=$PATH:/usr/local/go/bin
$ go version
Golang version
$ go install -v github.com/projectdiscovery/subfinder/v2/cmd/[email protected]
$ cd go/bin
$ mv subfinder /usr/local/bin
$ subfinder -version
Subfinder version
$ subfinder -d yahoo.com
Subfinder output
$ subfinder -d yahoo.com -all
Using -all flag
Subfinder will work after using the installation instructions however to configure Subfinder to work with certain services, you will need to have setup API keys
$ nano .config/subfinder/provider-config.yaml
File provider-config.yaml

In this case i can’t login into the website, so there is no screenshot for robtex API key

$ subfinder -d yahoo.com -all
Not using -all flag
Using -all flag
Using -all flag + using multiple API keys services