cdw works as Matlab's built-in CD, but wildcards (*) can be used in 
the string pattern. If more than one directory name matches the string 
pattern, then moves to the first one. 
 
Use the functional form of cdw, such as cdw('mydir*'), 
when the directory specification is stored in a string. 
 

 
   cdw mydir*2* 
 

CD, lsw, rdir. 
Published output in the Help browser 
   showdemo cdw