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30 lines
525 B
Go
30 lines
525 B
Go
package main
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import (
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"os"
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"flag" // command line option parser
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)
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var NewLine = flag.Bool("n", false, "print newline") // echo -n flag, of type *bool
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const (
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Space = " "
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Newline = "\n"
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)
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func main() {
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flag.PrintDefaults()
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flag.Parse() // Scans the arg list and sets up flags
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var s string = ""
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for i := 0; i < flag.NArg(); i++ {
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if i > 0 {
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s += " "
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if *NewLine { // -n is parsed, flag becomes true
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s += Newline
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}
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}
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s += flag.Arg(i)
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}
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os.Stdout.WriteString(s)
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}
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