[Golang] Append Line/String to File
I summarize the answer [1] [2] on Stack Overflow and write a func for the ease of use.
import "os"
/**
* Append string to the end of file
*
* path: the path of the file
* text: the string to be appended. If you want to append text line to file,
* put a newline '\n' at the of the string.
*/
func AppendStringToFile(path, text string) error {
f, err := os.OpenFile(path, os.O_APPEND|os.O_WRONLY, os.ModeAppend)
if err != nil {
return err
}
defer f.Close()
_, err = f.WriteString(text)
if err != nil {
return err
}
return nil
}
Tested on:
- Ubuntu Linux 16.10
- Go 1.7.4
References:
[1] | Append to a file in Go - Stack Overflow |
[2] | go - Golang bad file descriptor - Stack Overflow |