Selecting files and directories using a mask
To perform operations on a number of files or directories from the current directory selected in the main window, you can use the feature of selecting files using a mask. As it is with search, the mask used for the selection will also be used in a regular expression. To perform the selection, enter the mask in the selection form at the top of the main window and press the 'Select' button. For instance, to select all files with the 'html' extension, you should submit the following mask: '\.html$' (without the quotes).