On 12/04/22, 'Sean Liao' via golang-nuts (golang-nuts@googlegroups.com) wrote:
> > output, err := os.Create(o)
> The short variable declaration you used to create `err` also shadows
> `output`.
Thanks very much for pointing out this shadowing problem.
>
> var err error
> output, err = os.Create(o)
>
> > func main() {
> >
> > // o := "-" // use stdin
> > o := "/tmp/output.txt" // or a file
> >
> > var output io.Writer
> > if o == "-" {
> > output = os.Stdout
> > } else {
> > output, err := os.Create(o)
...
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