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28 lines
454 B
Go
28 lines
454 B
Go
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// Copyright © 2016 Alan A. A. Donovan & Brian W. Kernighan.
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// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
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// See page 33.
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//!+
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// Echo4 prints its command-line arguments.
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package main
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import (
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"flag"
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"fmt"
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"strings"
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)
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var n = flag.Bool("n", false, "omit trailing newline")
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var sep = flag.String("s", " ", "separator")
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func main() {
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flag.Parse()
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fmt.Print(strings.Join(flag.Args(), *sep))
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if !*n {
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fmt.Println()
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}
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}
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//!-
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