Первая версия

main.go

@@ -0,0 +1,120 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"os/exec"
+	"runtime"
+	"strings"
+)
+
+func GetOsInfo() string {
+	var osInfo string
+	osInfoByte, err := os.ReadFile("/etc/os-release")
+	if err != nil {
+		fmt.Println(err)
+	}
+	osInfoStr := string(osInfoByte)
+	for _, envStr := range strings.Split(osInfoStr, "\n") {
+		envStrArr := strings.Split(envStr, "=")
+		if envStrArr[0] == "PRETTY_NAME" {
+			osInfo = envStrArr[1]
+			break
+		}
+	}
+	return osInfo
+}
+
+func GetUser() string {
+	var user string
+	for _, envStr := range os.Environ() {
+		envStrArr := strings.Split(envStr, "=")
+		if envStrArr[0] == "USER" {
+			user = envStrArr[1]
+			break
+		}
+	}
+	return user
+}
+
+func GetShell() string {
+	var shell string
+	for _, envStr := range os.Environ() {
+		envStrArr := strings.Split(envStr, "=")
+		if envStrArr[0] == "SHELL" {
+			shell = envStrArr[1]
+			break
+		}
+	}
+	return shell
+}
+
+func GetKernelVersion() string {
+	var out strings.Builder
+	cmd := exec.Command("uname", "-r")
+	cmd.Stdout = &out
+	err := cmd.Run()
+	if err != nil {
+		fmt.Println(err)
+	}
+	return out.String()
+}
+
+func GetHostname() string {
+	hostnameByte, err := os.ReadFile("/etc/hostname")
+	if err != nil {
+		fmt.Println(err)
+	}
+	hostname := string(hostnameByte)
+	return strings.Fields(hostname)[0]
+}
+
+func GetUptime() string {
+	hostnameByte, err := os.ReadFile("/proc/uptime")
+	if err != nil {
+		fmt.Println(err)
+	}
+	hostname := string(hostnameByte)
+	return strings.Fields(hostname)[0]
+}
+func GetAnsiColor() string {
+	var ansiColor string
+	ansiColorByte, err := os.ReadFile("/etc/os-release")
+	if err != nil {
+		fmt.Println(err)
+	}
+	ansiColorStr := string(ansiColorByte)
+	for _, envStr := range strings.Split(ansiColorStr, "\n") {
+		envStrArr := strings.Split(envStr, "=")
+		if envStrArr[0] == "ANSI_COLOR" {
+			ansiColor = strings.Split(envStrArr[1], "\"")[1]
+			break
+		}
+	}
+	return ansiColor
+}
+
+func GenBreaker(user string, hostname string) string {
+	var breaker strings.Builder
+	for i := 0; i < (len(user) + len(hostname) + 1); i++ {
+		fmt.Fprintf(&breaker, "=")
+	}
+	return breaker.String()
+}
+
+func main() {
+	if runtime.GOOS != "linux" {
+		fmt.Println("OS not support")
+		os.Exit(0)
+	}
+
+	user := GetUser()
+	hostname := GetHostname()
+
+	fmt.Printf("%v@%v\n", user, hostname)
+	fmt.Printf("\033[%vm%v\033[0m\n", GetAnsiColor(), GenBreaker(user, hostname))
+	fmt.Printf("OS:\t%v\n", GetOsInfo())
+	fmt.Printf("KERNEL:\t%v", GetKernelVersion())
+	fmt.Printf("SHELL:\t%v\n", GetShell())
+	fmt.Printf("UPTIME:\t%v\n", GetUptime())
+}