How to create temporary files in go

PublishedDecember 2, 2018

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Srinivasan Rangarajan

Software Engineer with an entrepreneurship gene. Love talking about code, products, UI/UX and how to build startups.

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package main import ( "fmt" "io/ioutil" "os" ) func main() { // Create a Temp File: This will create a filename like /tmp/pre-23423234 // If we use a pattern like "pre-*.ext", you can get a file like: /tmp/pre-23423234.ext tmpFile, err := ioutil.TempFile(os.TempDir(), "pre-") if err != nil { fmt.Println("Cannot create temporary file", err) } // cleaning up by removing the file defer os.Remove(tmpFile.Name()) fmt.Println("Created a Temp File: " + tmpFile.Name()) // Write to the file text := []byte("Writing some text into the temp file.") if _, err = tmpFile.Write(text); err != nil { fmt.Println("Failed to write to temporary file", err) } // Close the file if err := tmpFile.Close(); err != nil { fmt.Println(err) } }

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