[gmx-users] use do_dssp with only pdb file with many configurations in it

[ABEL Stephane 175950]

Hi gromacs users 

In previous message Mark Abraham. said me that do_dssp tools can be used only with a pdb file (thank to him ;))). I am newbie with gromacs (i came from the ORAC MD world), so i have two questions 

1 °) Can do_dssp can be used with "only" one pdb file with some configurations (say 40000)
2 °) What is the exact command to use with do_dssp in this case to generate a xpm file with the secondary structure time  serie 

Thank you in advance  

Stefane