Golang input/output: Difference between revisions
From wikinotes
(→print) |
|||
Line 13: | Line 13: | ||
|} | |} | ||
</blockquote><!-- Documentation --> | </blockquote><!-- Documentation --> | ||
= stdin, stdout, stderr = | = stdin, stdout, stderr = |
Revision as of 16:18, 18 June 2022
Documentation
fmt
https://pkg.go.dev/fmt@go1.18.2 io/ioutil
(read/write)https://pkg.go.dev/io/ioutil@go1.18.3 io/fs
(filesystem)https://pkg.go.dev/io/fs@go1.18.3 textproto
(sockets)https://pkg.go.dev/net/textproto@go1.18.3
stdin, stdout, stderr
fmt.Fprintln(os.Stdout, "writes stdout") fmt.Fprintln(os.Stderr, "writes stderr")
Files
require "os" os.WriteFile("/var/tmp/foo.txt", []byte("abc"), 0644) conts, err := os.ReadFile("/var/tmp/foo.txt")
Networking
Sockets
net.Dial()
creates sockets of various types.import "net" // unix socketfile conn, err = net.Dial("unix", "/var/tmp/foo.sock") // inet socket conn, err = net.Dial("tcp", "10.10.10.10:6600") defer conn.Close() // sending message to socket _, err = conn.Write([]byte("search title 'it ceases to be'")) reply := make([]byte, 1024) _, err = conn.Read(reply) fmt.Println(string(reply))HTTP