Print output from tarantool to stdout

tnteval

#!/usr/bin/env tarantool

local CONSOLE_SOCKET_PATH = 'unix/:/var/run/tarantool/tarantool.sock'
local os = require("os")

console = require('console')
console.on_start(function(self)
    local status, reason
    status, reason = pcall(function() require('console').connect(CONSOLE_SOCKET_PATH) end)
    if not status then
        self:print(reason)
        self.running = false
        os.exit(1)
    end
    local res = self:eval(arg[1])
    if res ~= nil then
        print(res)
    end
    os.exit(0)
end)
console.on_client_disconnect(function(self) self.running = false end)
console.start()
os.exit(0)

Built-in alternative:

$ echo 'box.info.replication' | tarantoolctl enter <instance_name>
$ echo 'box.info.replication' | tarantoolctl connect <console_port / listen_port>