Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
Golang program to create a temporary file
In Go programming language we can use ioutil.TempFile function to create a temporary file. To create a new temporary file in the default temporary directory, this program uses the ioutil. TempFile function. The directory in which the file should be created is the first argument to TempFile, and the pattern to use for the file name is the second argument. The pattern in this instance is "temp-*.txt," leading to a file name like "temp-123456789.txt".
Syntax
Ioutil.TempFile
In Go programming language, this function is a part of ioutil package and is used to create a temporary file. A temporary file is used to store data temporarily for the time the program executes.
Algorithm
Step 1 − Create a package main and declare fmt(format package), io/ioutil and os package in the program where main produces executable codes and fmt helps in formatting input and output.
Step 2 − Make an ioutil.TempFile call to create a new temporary file.
Step 3 − Verify if an error was returned by the TempFile call. Print the error and go back if there was one.
Step 4 − When the program ends, delete the file using a postpone statement.
Step 5 − Contact the file to add some text to the file, use the WriteString function.
Step 6 − Verify if an error was returned by the WriteString method. Print the error and return back if there was one.
Step 7 − To close a file, use the Close method.
Step 8 − Verify to see if the Close call produced an error. Print the error and return back if there was one.
Step 9 − Print a message stating the temporary file's name and that it was created using fmt.Println() function where ln means new line.
Example
In this example we will use ioutil.TempFile function to implement the program of creating a temporary file.
package main
import (
"fmt"
"io/ioutil"
"os"
)
func main() {
// Create a temporary file
file, errs := ioutil.TempFile("", "temp-*.txt")
if errs != nil {
fmt.Println(errs)
return
}
defer os.Remove(file.Name())
// Write some text to the file
_, errs = file.WriteString("Temporary file contents")
if errs != nil {
fmt.Println(errs)
return
}
// Close the file
errs = file.Close()
if errs != nil {
fmt.Println(errs)
return
}
fmt.Println("The temporary file is created:", file.Name())
}
Output
The temporary file is created: /tmp/temp-*.txt133535689
Conclusion
We executed the program of creating a temporary function using an example in which we used ioutil.TempFile function which is used to create a temporary function. Here, if the file is created success message is printed otherwise return statement is executed.
2K+ Views
