From 2ce694b77a02be7065f655863d268e12938d3e13 Mon Sep 17 00:00:00 2001
From: k1574 <k1574@yandex.ru>
Date: Wed, 6 Oct 2021 04:15:20 +0500
Subject: [PATCH] echo: added delimiter option.

---
 echo/echo.go | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/echo/echo.go b/echo/echo.go
index d9e2229..ea135cc 100644
--- a/echo/echo.go
+++ b/echo/echo.go
@@ -6,19 +6,26 @@ import (
 	"flag"
 )
 
+var(
+	del string
+	eol = "\n"
+)
+
 func Run(args []string) int {
 	var nflag bool
 	flagSet := flag.NewFlagSet(args[0], flag.ExitOnError)
 	flagSet.BoolVar(&nflag, "n", false, "Do not print new line character.")
+	flagSet.StringVar(&del, "d", " ", "Delimiter of arguments")
 	flagSet.Parse(args[1:])
 	args = flagSet.Args()
 	l := len(args) - 1
 	for i, s := range args {
 		fmt.Print(s)
-		if i!=l { fmt.Print(" ") }
+		if i!=l { fmt.Print(del) }
 	}
 	if !nflag {
-		fmt.Print("\n")
+		fmt.Print(eol)
 	}
+
 	return 0
 }