Created
December 13, 2018 04:08
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concatenate gz files
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package main | |
import ( | |
"flag" | |
"fmt" | |
"io/ioutil" | |
"os" | |
) | |
func main() { | |
// dir name | |
flag.Parse() | |
dirName := flag.Args()[0] | |
fmt.Println("File dir: " + dirName) | |
// read dir | |
files, err := ioutil.ReadDir(dirName) | |
if err != nil { | |
fmt.Println("Dir read ERROR !") | |
fmt.Println(err) | |
return | |
} | |
// open output file | |
output := "output.txt.gz" | |
fp_w, err := os.OpenFile(output, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0644) // <--- 出力ファイルをオープンします | |
if err != nil { | |
return | |
} | |
defer fp_w.Close() | |
// write gz file | |
for _, file := range files { | |
fmt.Println("Found gz file: " + file.Name()) | |
gzFile, err := ioutil.ReadFile(dirName + "/" + file.Name()) // <--- gzファイルをオープンします | |
if err != nil { | |
return | |
} | |
_, err = fp_w.Write(gzFile) // <--- 出力ファイルに書き込みます | |
if err != nil { | |
return | |
} | |
} | |
} |
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