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1 package main
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2
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3 import (
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4 "bufio"
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5 "flag"
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6 "fmt"
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7 "os"
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8 )
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9
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10 func main() {
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11 var c = flag.Bool( "c", false, "count each items" )
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12 var l = flag.Bool( "l", false, "count items")
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13 flag.Parse()
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14
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15 files := flag.Args()
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16
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17 count := make( map[string] int )
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18 var lines []string
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19
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20 // Input
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21 if len( files ) == 0 {
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22 input := bufio.NewScanner( os.Stdin )
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23 for input.Scan() {
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24 count[input.Text()]++
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25 lines = append( lines, input.Text() )
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26 }
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27 } else {
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28 for _, arg := range files {
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29 f, err := os.Open( arg )
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30 if err != nil {
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31 fmt.Fprintf( os.Stderr, "uq : %v\n", err )
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32 continue
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33 }
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34 input := bufio.NewScanner( f )
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35 for input.Scan() {
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36 count[input.Text()]++
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37 lines = append( lines, input.Text() )
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38 }
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39 f.Close()
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40 }
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41 }
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42
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43 // Output
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44 if *l {
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45 fmt.Println( len(lines), "->", len(count) )
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46 return
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47 }
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48
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49 done := make( map[string] int )
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50 for _, line := range lines {
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51 if done[line] == 0 {
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52 if *c {
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53 fmt.Printf( "%s,\t%d\n", line, count[line] )
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54 } else {
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55 fmt.Println( line )
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56 }
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57 }
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58 done[line]++
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59 }
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60 }
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61
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