golangHow to check if file not exist
package main
import (
"fmt"
"errors"
"os"
)
func main() {
if _, err := os.Stat("/no/such/file"); errors.Is(err, os.ErrNotExist) {
fmt.Println("no such file")
}
}ctrl + cpackage maindefault package declaration | "os"include operating-system level library |
func main() {declare | os.Statretrieve file stats |
errors.Ischeck if raised error is of specified type | ErrNotExistraises when there are no such file |
Usage example
package main
import (
"fmt"
"errors"
"os"
)
func main() {
if _, err := os.Stat("/no/such/file"); errors.Is(err, os.ErrNotExist) {
fmt.Println("no such file")
}
}output
no such file
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