exist

Check for the existence.

📝 Syntax

• res = exist(name)

• res = exist(name, category)

📥 Input argument

• name - a string: name of variable, function, file or directory.

• category - a string: 'var', 'builtin', 'file', or 'dir'.

📤 Output argument

• res - a integer value.

📄 Description

exists checks for the existence of variable, builtin, file or directory.

exists returns:

0 does not exist

1 is an variable

2 is a file

3 is a mex function

5 is a builtin or function

7 is a directory

💡 Example

exist('fileread')
fileread = 3;
exist('fileread')
clear fileread
exist('fileread')

🔗 See also

isbuiltin, ismacro, isfile, isdir, isvar.

🕔 History

Version	📄 Description
1.0.0	initial version