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A Go package for using unix pseudo-terminals


Pty is a Go package for using unix pseudo-terminals.

Install

go get github.com/creack/pty

Examples

Note that those examples are for demonstration purpose only, to showcase how to use the library. They are not meant to be used in any kind of production environment.

Command

package main

import (
	"io"
	"os"
	"os/exec"

	"github.com/creack/pty"
)

func main() {
	c := exec.Command("grep", "--color=auto", "bar")
	f, err := pty.Start(c)
	if err != nil {
		panic(err)
	}

	go func() {
		f.Write([]byte("foon"))
		f.Write([]byte("barn"))
		f.Write([]byte("bazn"))
		f.Write([]byte{4}) // EOT
	}()
	io.Copy(os.Stdout, f)
}

Shell

<div class=”highlight highlight-source-go position-relative” data-snippet-clipboard-copy-content=”package main

import (
” io” “log” “os” “os exec” “os signal” “syscall” “github.com creack pty” “golang.org x term” ) func test() error { Create arbitrary command. c := exec.Command(“bash”) Start the command with a pty. ptmx, err := pty.Start(c) if err != nil { return err } Make sure to close the pty at the end. defer func() { _ = ptmx.Close() }() Best effort. Handle pty size. ch := make(chan os.Signal, 1) signal.Notify(ch, syscall.SIGWINCH) go func() { for range ch { if err := pty.InheritSize(os.Stdin, ptmx); err != nil { log.Printf(“error resizing pty: %s”, err) } } }() ch

package main

import (
        "io"
        "log"
        "os"
        "os/exec"
        "os/signal"
        "syscall"

        "github.com/creack/pty"
        "golang.org/x/term"
)

func test() error {
        // Create arbitrary command.
        c := exec.Command("bash")

        // Start the command with a pty.
        ptmx, err := pty.Start(c)
        if err != nil {
                return err
        }
        // Make sure to close the pty at the end.
        defer func() { _ = ptmx.Close() }() // Best effort.

        // Handle pty size.
        ch := make(chan os.Signal, 1)
        signal.Notify(ch, syscall.SIGWINCH)
        go func() {
                for range ch {
                        if err := pty.InheritSize(os.Stdin, ptmx); err != nil {
                                log.Printf("error resizing pty: %s", err)
                        }
                }
        }()
        ch <- syscall.SIGWINCH // Initial resize.
        defer func() { signal.Stop(ch); close(ch) }() // Cleanup signals when done.

        // Set stdin in raw mode.
        oldState, err := term.MakeRaw(int(os.Stdin.Fd()))
        if err != nil {
                panic(err)
        }
        defer func() { _ = term.Restore(int(os.Stdin.Fd()), oldState) }() // Best effort.

        // Copy stdin to the pty and the pty to stdout.
        // NOTE: The goroutine will keep reading until the next keystroke before returning.
        go func() { _, _ = io.Copy(ptmx, os.Stdin) }()
        _, _ = io.Copy(os.Stdout, ptmx)

        return nil
}

func main() {
        if err := test(); err != nil {
                log.Fatal(err)
        }
}




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जमीन विवाद में तीन लोगों को गोलियों से भूना, दो की मौके पर मौत, वारदात के बाद जमकर हंगामा thumbnail

जमीन विवाद में तीन लोगों को गोलियों से भूना, दो की मौके पर मौत, वारदात के बाद जमकर हंगामा