Copy file or folder
copyfile copies the file or folder
source to the current folder. After a successful
copyfile operation, the timestamp for the new file is the
same as the timestamp for
source is a file, then
destination can be a file or an existing
source is a folder, then
destination must be a folder.
source is a folder or specifies multiple
destination does not exist, then
copyfile attempts to create
specified file or folder and returns a status of
status = copyfile(___)
1 if the
operation is successful. Otherwise,
0. You can use this syntax with any of the input argument
combinations in the previous syntaxes.
myfile1.m from the current folder to the subfolder
mkdir myFolder copyfile myfile1.m myFolder
Create a copy of
myfile1.m in the current folder, assigning it the name
copyfile myfile1.m myfile2.m
Copy files and subfolders with names beginning with
my from the current folder to the folder
newFolder does not already exist.
copyfile my* newFolder
Copy the file
myfile1.m from the current folder to the read-only folder
Create the read-only folder
mkdir restricted fileattrib restricted -w
Copy and rename the file
myfile1.m. A status of 0 shows the copy was unsuccessful.
status = copyfile('myfile1.m', 'restricted'); status
status = logical 0
Copy the file
myfile1.m using the 'f' option to override the read-only status of the destination folder. A status of 1 and an empty
messageId confirm the copy was successful.
[status,message,messageId] = copyfile('myfile1.m', 'restricted', 'f'); status
status = logical 1
message = 0x0 empty char array
messageId = 0x0 empty char array
source— File or folder to copy
File or folder to copy, specified as a character vector or string scalar. To copy multiple files or folders, use wildcards (*).
source can be an absolute or relative path when copying
local files or folders. However, to copy files and folders at a remote
source must contain a full path specified as a
uniform resource locator (URL). For more information, see Work with Remote Data.
source is a string, enclose all the inputs in
parentheses. For example,
destination— File or folder destination
File or folder destination, specified as a character vector or string
destination cannot include wildcards (*).
destination is a local location, it can be specified
as an absolute or relative path. If
remote, it must contain a full path specified as a URL. For more
information, see Work with Remote Data.
destination is a string, enclose all the inputs
in parentheses. For example,
status— Copy status
Copy status, indicating if the attempt to move the file or folder is
successful, returned as
1. If the
attempt is successful, the value of
status is 1.
Otherwise, the value is 0.
msg— Error message
Error message, returned as a character vector. If an error or warning occurs,
msg contains the message text of the error or
msg is empty,
msgID— Error message identifier
Error message identifier, returned as a character vector. If an error or warning occurs,
msgID contains the message identifier of the error or
msgID is empty,
*.*on UNIX platforms matches only files that have an extension
Behavior changed in R2020a
Starting in R2020a, on UNIX® platforms, the wildcard expression
*.* no longer
matches folders or files without an extension. In previous releases, the expression
matches folders or files regardless of extension, including files without an
extension. This change of behavior does not apply to Microsoft®
Behavior changed in R2020a
Symbolic links (or symlinks) are file system objects that point to target files or
folders. Starting in R2020a, the behavior of the
function changes when operating on symlink files or folders.
Copy outcome is platform independent:
copyfile now treats symlinks on different operating
systems in the same way. For example, consider a folder structure with a
myFile.m and a symlink pointing to
myFile.m, specified as
Starting in R2020a,
copyfile('symlinkToMyFile','newFile') copies the
target of the symlink (that is,
myFile.m) to the
destination. In previous releases, on Linux®,
copyfile copies the symlink
copyfile copies only the
contents of the source folder: When copying a nonempty
folder to a symlink folder,
copyfile now copies the
contents of the source folder (that is, the files and folders within the
source folder) rather than the entire source folder. Similarly, when
copying a symlink folder to a destination folder, only the contents of
the symlink folder are copied.
For example, consider a folder structure on Linux consisting of a nonempty folder
myFolder and a symlink to that folder named
symlinkToMyFolder. This table shows the folder
structure after the execution of
different MATLAB® releases.
|Folder Structure Before Copy||Folder Structure After Copy (Starting in R2020a)||Folder Structure After Copy (R2019b and Earlier)|
myFolder myFile.m symlinkToMyFolder
myFolder myFile.m symlinkToMyFolder myFile.m
myFolder myFile.m symlinkToMyFolder myFolder myFile.m