AL11 SAP Directories

1. Tcode AL11 is used to display all the SAP Directories.We can access the file systems that have been defined and attached to a Parameter in this Tcode .We can view,find the file under this directories.some important directory parameter
DIR_ TRANS,  DIR_DB2_HOME,DIR_HOME,,etc,,.

2.When you double click on the directory you will see the all files in the directory .using the directory parameter in the profile or in the program.We can call a file from OS level in SAPGUI on the user PC/LAPTOP.