[go-nuts] idiomatic code to find, if executable exists in golang

[Dave Cheney]

Are you able to modify the original question. Why do you need to know if a 
binary exists? Presumably so you can execute it. If so then you can modify the 
original request and make the problem more tractable. 

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[go-nuts] idiomatic code to find, if executable exists in golang

[Nilsocket]

package main

import (
"os"
"os/exec"
)

func main() {

cmdName := os.Args[1]

//either cmd or executable without arguments
if _, err := exec.LookPath(cmdName); err != nil {
if (err.(*exec.Error)).Err == exec.ErrNotFound {
// executable doesn't exist, do something
} else {
// error, may be related to permissions
}
} else {
// executable exists, do something
}

}


Is this the only way to know if executable exists?
Is there any other function which does the same thing in stdlib.
Is there any other better way to do this?

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