1. 可接收变参命令
package main import ( "fmt" "os" "os/exec" "strings" ) func main(){ sliceFunc(os.Args[1:]...) } func sliceFunc(cmd... string){ fmt.Println(cmd) if len(cmd) == 0 { fmt.Printf("Usage: %s args...\n", os.Args[0]) os.Exit(-1) } fmt.Println(cmdFunc(cmd...)) } func cmdFunc(cmd... string) string { fmt.Printf("cmd slice len: %d, value:%v\n", len(cmd), cmd) result, err := exec.Command(cmd[0], cmd[1:]...).Output() if err != nil { fmt.Println("Command failed:", err.Error()) } // return string(result) // with '\n' return strings.TrimSpace(string(result)) }
执行结果：
$ go run slice.go uname -a [uname -a] cmd slice len: 2, value:[uname -a] Linux e531 5.0.0-29-generic #31~18.04.1-Ubuntu SMP Thu Sep 12 18:29:21 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux $ go run slice.go uname [uname] cmd slice len: 1, value:[uname] Linux
2. Linux和Windows命令
只接收单个命令并执行：
package main import ( "fmt" "errors" "os" "os/exec" "runtime" "strings" ) func main(){ if len(os.Args) == 1{ fmt.Printf("Usage: %s args...\n", os.Args[0]) os.Exit(-1) } str1, err := RunCommandWithErr(os.Args[1]) if err != nil { fmt.Println(err.Error()) } else { fmt.Println(str1) } str := RunCommand(os.Args[1]) fmt.Println(str) } func runInLinux(cmd string) string{ fmt.Println("Running Linux cmd:" , cmd) result, err := exec.Command("/bin/sh", "-c", cmd).Output() if err != nil { fmt.Println(err.Error()) } return strings.TrimSpace(string(result)) } func runInWindows(cmd string) string{ fmt.Println("Running Win cmd:", cmd) result, err := exec.Command("cmd", "/c", cmd).Output() if err != nil { fmt.Println(err.Error()) } return strings.TrimSpace(string(result)) } func RunCommand(cmd string) string{ if runtime.GOOS == "windows" { return runInWindows(cmd) } else { return runInLinux(cmd) } } func RunLinuxCommand(cmd string) string{ if runtime.GOOS == "windows" { return "" } else { return runInLinux(cmd) } } func runInLinuxWithErr(cmd string) (string, error) { fmt.Println("Running Linux cmd:"+cmd) result, err := exec.Command("/bin/sh", "-c", cmd).Output() if err != nil { fmt.Println(err.Error()) } return strings.TrimSpace(string(result)), err } func runInWindowsWithErr(cmd string) (string, error){ fmt.Println("Running Windows cmd:"+cmd) result, err := exec.Command("cmd", "/c", cmd).Output() if err != nil { fmt.Println(err.Error()) } return strings.TrimSpace(string(result)), err } func RunCommandWithErr(cmd string) (string, error){ if runtime.GOOS == "windows" { return runInWindowsWithErr(cmd) } else { return runInLinuxWithErr(cmd) } } func RunLinuxCommandWithErr(cmd string)(string, error){ if runtime.GOOS == "windows" { return "", errors.New("could not run in Windows Os") } else { return runInLinuxWithErr(cmd) } }
执行结果：
$ go run cmd.go uname Running Linux cmd:uname Linux Running Linux cmd: uname Linux $ go run cmd.go uname -a Running Linux cmd:uname Linux Running Linux cmd: uname Linux
参考：
1. golang功能代码
来源：博客园
作者：yuxi_o
链接：https://www.cnblogs.com/embedded-linux/p/11619637.html