Check output device is a terminal: Difference between revisions

Content added Content deleted
m (Promote to task, lots of examples, little real controversy, most concerns have been addressed)
(→‎{{header|Go}}: A solution without the use of external libraries. I'm 95% sure this isn't any worse than the previous version (both would have corner cases))
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=={{header|Go}}==
=={{header|Go}}==
Tells a ''terminal'' apart from a ''pipe'' on Linux and Mac, which is probably exactly what you need.
{{libheader|Go sub-repositories}}

<lang go>package main
<lang go>package main


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"os"
"os"
"fmt"
"fmt"
"golang.org/x/crypto/ssh/terminal"
)
)


func main() {
func main() {
if terminal.IsTerminal(int(os.Stdout.Fd())) {
if fileInfo, _ := os.Stdout.Stat(); (fileInfo.Mode() & os.ModeCharDevice) != 0 {
fmt.Println("Hello terminal")
fmt.Println("Hello terminal")
} else {
} else {
fmt.Println("Who are you? You're not a terminal.")
fmt.Println("Who are you? You're not a terminal")
}
}
}</lang>
}</lang>
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Hello terminal
Hello terminal
> hello | cat
> hello | cat
Who are you? You're not a terminal.
Who are you? You're not a terminal.
</pre>
</pre>


Retrieved from "https://rosettacode.org/wiki/Check_output_device_is_a_terminal"