RunMat
  • Pricing
RunMat
GitHub
GitHub
DownloadSign InTry in Browser
DesktopRuntimeServer
RunMat

Run math blazing fast

GitHubX (Twitter)LinkedIn

Company

  • About
  • Pricing
  • Contact

Explore

  • RunMat for academia
  • RunMat vs MATLAB Online
  • Benchmarks

Get product updates and release notes from the RunMat team.

© 2026 Dystr · Made withfor the scientific community.

RunMat™ is a registered trademark of Dystr, Inc. MATLAB® is a registered trademark of The MathWorks, Inc. RunMat is not affiliated with, endorsed by, or sponsored by The MathWorks, Inc.

LicensePrivacy
/
See all docs
Builtin Reference
    • addpath
    • cd
    • copyfile
    • delete
    • dir
    • exist
    • fileattrib
    • fileparts
    • fullfile
    • genpath
    • getenv
    • getpref
    • isenv
    • isfile
    • isfolder
    • ispref
    • ls
    • matlabroot
    • memmapfile
    • mkdir
    • movefile
    • open
    • opentoline
    • path
    • pathsep
    • pcode
    • pwd
    • readstruct
    • rehash
    • restoredefaultpath
    • rmdir
    • rmpath
    • run
    • savepath
    • setenv
    • setpref
    • system
    • tempdir
    • tempname
    • uigetdir
    • uigetfile
    • uiputfile
    • unsetenv
    • userpath
    • what
    • winqueryreg
    • xmlread
    • xmlwrite

fileattrib — Return filesystem attribute metadata for a path.

Return filesystem attribute metadata for a textual path. Numeric and integer inputs are inapplicable. RunMat currently exposes only the subset representable by the active filesystem abstraction; complete MATLAB user/group/other permission, wildcard, recursion, and setter-output semantics remain implementation gaps.

Syntax

[status, attributes] = fileattrib(path)

Inputs

NameTypeRequiredDefaultDescription
inputAnyYes—Input argument.

Returns

NameTypeDescription
statusNumericScalar1 when attributes were read, otherwise 0.
attributesAnyAttribute struct or diagnostic struct.

Returned values from fileattrib depend on how many outputs the caller requests.

How fileattrib works

  • Accepts host string scalars, scalar string arrays, and character row vectors for the path and textual controls.
  • Reads file metadata and returns status plus an attribute struct containing Name, hidden, directory, and user/group/other permission flags.
  • Supports common writable flag mutation with +w and -w through the active filesystem provider.
  • The current read-flag no-op and synthesized permission fields are implementation limitations, not claims of complete MATLAB compatibility.

Using fileattrib with coding agents

Open a RunMat example with live inputs, then ask the agent to explain how fileattrib changes the result.

Run a small fileattrib example, explain the result, then change one input and compare the output.

Related Io functions

Repl Fs

addpath · cd · copyfile · delete · dir · exist · fileparts · fullfile · genpath · getenv · getpref · isenv · isfile · isfolder · ispref · ls · matlabroot · memmapfile · mkdir · movefile · open · opentoline · path · pathsep · pcode · pwd · readstruct · rehash · restoredefaultpath · rmdir · rmpath · run · savepath · setenv · setpref · system · tempdir · tempname · uigetdir · uigetfile · uiputfile · unsetenv · userpath · what · winqueryreg · xmlread · xmlwrite

Net

accept · read · readline · tcpclient · tcpserver · write

Tabular

arrayDatastore · csvread · csvwrite · detectImportOptions · dlmread · dlmwrite · fileDatastore · parquetDatastore · parquetinfo · parquetread · readcell · readmatrix · readtable · readtimetable · spreadsheetImportOptions · writecell · writematrix · writetable · writetimetable · xlsread · xlswrite

Audio

audioinfo · audioread

Io

clc · diary · disp · display · format · input

Filetext

fclose · feof · fgetl · fgets · fileread · filewrite · fopen · fprintf · fread · frewind · fwrite · readlines · writelines

Archive

gunzip · gzip · unzip

Hdf5

h5disp · h5info · h5read · h5write · h5writeatt · hdf5info · hdf5read · hdf5write

Import

importdata · textscan

Json

jsondecode · jsonencode

Mat

load · matfile · save

Http

sendmail · urldecode · urlencode · weboptions · webread · websave · webwrite

About RunMat

RunMat is an open-source runtime that executes MATLAB-syntax code blazing on any GPU. It is licensed under the Apache 2.0 license.

  • RunMat automatically optimizes your math for GPU execution on Apple, Nvidia, and AMD hardware. No code changes needed. Simulations that took hours now take minutes.
  • Start running code in seconds. RunMat runs in the browser, on the desktop, or from the CLI. No license server, no IT ticket.

Getting started · Benchmarks · Pricing

Download RunMat

Download RunMat for full performance, or use RunMat in your browser for zero setup.

Download RunMatOpen Sandbox
On this page
  • Syntax
  • Inputs
  • Returns
  • How fileattrib works
  • Using fileattrib with coding agents
  • Related Io functions
  • Repl Fs
  • Net
  • Tabular
  • Audio
  • Io
  • Filetext
  • Archive
  • Hdf5
  • Import
  • Json
  • Mat
  • Http
  • About RunMat