Golang os.Remove: Delete All Files in Directory

Use the os.Remove method with Readdir to delete all the files in a directory.

Os.Remove. A directory may have many files in it. With os.Remove, we can remove just 1 file at a time. But it is possible to use a loop to remove all files in the directory.File

With Readdir, we get a slice of all the files in a directory. We can then get the full paths of each file, and pass those to the os.Remove method. All files are deleted in the folder.Readdir

An example. To begin, we specify a target directory—you will want to adjust this to point to a location on your computer. Use a path syntax for your target platform.

Open, Readdir: We first use os.Open to open the directory. We then use Readdir to get a slice containing all the files from the directory.

For: We use a for-range loop over the files and then get each of their names with the Name() func.

For

Remove: We get the full path by concatenating the directory with the file name, and then pass the path to os.Remove.

Golang program that uses os.Remove, deletes all files package main import ( "fmt" "os" ) func main() { // The target directory. directory := "/home/sam/test/" // Open the directory and read all its files. dirRead, _ := os.Open(directory) dirFiles, _ := dirRead.Readdir(0) // Loop over the directory's files. for index := range(dirFiles) { fileHere := dirFiles[index] // Get name of file and its full path. nameHere := fileHere.Name() fullPath := directory + nameHere // Remove the file. os.Remove(fullPath) fmt.Println("Removed file:", fullPath) } } Output Removed file: /home/sam/test/Untitled Document 3 Removed file: /home/sam/test/Untitled Document Removed file: /home/sam/test/Untitled Document 2

Notes, results. You can see that there were 3 Untitled Documents that were removed when the program was executed. These were in the folder when I ran the Golang program.

Notes, validation. Before deleting many files, it sometimes helps to have a confirmation, or some sort of logic test. It can be hard to recover from a mass deletion made in error.

A review. We can directly invoke os.Remove with a path argument to delete a file. And in a loop (one based on the result of Readdir) we can delete the entire contents of a directory.

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Golang os.Remove: Delete All Files in Directory

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