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26 lines
464 B
Go
26 lines
464 B
Go
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package main
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import (
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"bytes"
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"fmt"
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"io/ioutil"
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"os"
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)
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func main() {
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args := os.Args
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if len(args) != 4 {
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fmt.Println("gogoreplace wants three arguments")
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fmt.Println(" gogoreplace oldsubstring newsubstring filename")
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os.Exit(1)
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}
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data, err := ioutil.ReadFile(args[3])
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if err != nil {
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panic(err)
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}
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data = bytes.Replace(data, []byte(args[1]), []byte(args[2]), -1)
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if err := ioutil.WriteFile(args[3], data, 0666); err != nil {
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panic(err)
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}
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}
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