rituraj purohit wrote:
Dear all
I want ti install DSSP for visualization of secondary structure in
gromacs analysis.
I am doing following procedure..
Copy the executable "dsspcmbi"  to /usr/bin or /usr/local/bin
  ln -s dsspcmbi dssp
And running it for my Pdb like that....
dssp file.pdb file.dssp

BUt I am getting error "Permission Denied" even i m super user for the
machine (root).

[r...@localhost ~]# dssp
bash: /usr/local/bin/dssp: Permission denied
[r...@localhost ~]#

Plaese any body tell the solution for this problem...

You may still need execute permissions on the original executable. You should not ever be running as root when not installing software or maintaining the system.

Mark
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