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package main
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import (
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"fmt"
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"os"
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"golang.org/x/sys/unix"
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)
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func main() {
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if len(os.Args) != 2 {
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fmt.Fprintf(os.Stderr, "usage: access <path>\n")
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os.Exit(1)
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}
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filename := os.Args[1]
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if err := unix.Access(filename, unix.W_OK); err != nil {
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fmt.Printf("%v: %v\n", filename, err)
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}
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}
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