For Linux

First, run the command blow as root

bash <(curl -L -s https://install.direct/go.sh)

Second, use get v2ray-config file online to create your own config.json file

config.json file path : /etc/v2ray/config.json

Third, run the command to start v2ray as below

v2ray --config=/etc/v2ray/config.json

note: if you get error message as below

bash: v2ray command not found

you can use find command to find the v2ray file path as below

find / -name v2ray

maybe you can use

/usr/bin/v2ray/v2ray --config=/etc/v2ray/config.json

btw, you can use below command to start v2ray as service

sudo systemctl start v2ray

For Windows

V2RayW-github

Others

v2ray-home

v2ray-github

v2ray-tools