Issuing Commands from a user program. Any LaGriT command can be issued by calling the subroutine dotask , for example: call dotask ('cmo/select/3dmesh; finish', ier1) will select the Mesh Object named 3dmesh.ier1 will be zero if the commands are executed with no error, non-zero otherwise. A sequence of commands can also be executed using dotask,  for example:
           call dotask ('cmo/addatt//mo; cmo/list;finish',ier1)
will execute the two commands and then return to the next executable statement.  A finish command must always be the last command in the command list for dotask.  The user should also be aware that mesh object pointers might be changed by the dotask commands and should be refreshed using cmo_get_info.  The parser arrays cmsgin, xmsgin etc. will not be the same upon return from dotask.
By using the LaGriT command infile, a series of commands may be executed, for example: call dotask ('infile/mydeck'; finish', ier1) will execute all the LaGriT commands that are in the user's file named mydeck. The final command in the file mydeck should be finish. mydeck itself may contain additional infile commands.