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Update main.go #1

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9 changes: 9 additions & 0 deletions count/3/cmd/count/main.go
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Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,9 @@ const usage = `Counts words (or lines) from stdin (or files).
Usage: count [-lines] [file...]`

func main() {
sig := make(chan os.Signal, 1)
signal.Notify(sig, syscall.SIGINT)

flag.Usage = func() {
fmt.Println(usage)
flag.PrintDefaults()
Expand Down Expand Up @@ -41,4 +44,10 @@ func main() {
for line, n := range counts {
fmt.Printf("%d\t%s\n", n, line)
}
select {
case <-sig:
println("\nProgram interrupted by user pressing Ctrl+C hence exiting gracefully!")
os.Exit(0)
default:
}
}