isfile

Determine if input is file

Syntax

result = isfile(fileName)

Description

result = isfile(fileName) returns 1 if fileName is a file located on the specified path or in the current folder. Otherwise, isfile returns 0.

Examples

Is Input a File

Check if the input myfile1.txt is a file. A result of 1 indicates that myfile1.txt is a file.

result = isfile('myfile1.txt')

result = logical
   1

Create the folder myfolder, then check if myfolder is a file. A result of 0 indicates that myfolder is not a file.

mkdir myfolder;
result = isfile('myfolder')

result = logical
   0

Check if the inputs myfile1.txt and myfolder are files. A result of [1 0] indicates that myfile1.txt is a file and myfolder is not a file.

result = isfile(["myfile1.txt", "myfolder"])

result = 1×2 logical array
   1   0

Input Arguments

fileName — File name

string array | character vector | cell array of character vector

File name, specified as a string array, character vector, or cell array of character vectors. For a local file, fileName can include a relative path, but the relative path must be in the current folder. Otherwise, fileName must include a full path. If the file is stored at a remote location, then fileName must contain a full path specified as a uniform resource locator (URL). For more information, see Work with Remote Data.

Extended Capabilities

C/C++ Code Generation

Generate C and C++ code using MATLAB® Coder™.

Usage notes and limitations:

• Usage of file: in the specified path is not supported.

• No preprocessing is applied on the specified path.

• In certain cases, the behavior of the generated code might differ from MATLAB^®. In such cases, the behavior of the generated code matches that of stat/_stat in the C language.

Thread-Based Environment

Run code in the background using MATLAB® backgroundPool or accelerate code with Parallel Computing Toolbox™ ThreadPool.

This function fully supports thread-based environments. For more information, see Run MATLAB Functions in Thread-Based Environment.

Version History

Introduced in R2017b