gsplitpdos and gsumpdos for extracting PDOS from DOSCAR (Xiao san)

gsplitpdos: extract DOSCAR to Total DOS and PDOS for each atom (not each element).
gsumpdos: sum PDOS for selected atoms.

pdos.py: plot Total DOS and PDOS for each element.

When the folder includes POSCAR DOSCAR OUTCAR PROCAR
 put pdos-all.py gsplitpdos and gsumpdos in this folder.

(1) run "python pdos-all.py", it generates txt files of PDOS for each 
element and save all figures for Total DOS and PDOS for each element.

(2) run "python pdos-all.py?? +? filename", it plots the DOS of the 
selected file.


There is one error "grep: write error" when running "python pdos-all.py"

it's because I use? "os.system("bash ./gsplitpdos")"

But it seems to be no effect in the output files.

If I remove the line 28 "os.system("bash ./gsplitpdos")", this error disappears.

In this case, I need to run "bash ./gsplitpdos" before "python pdos-all.py"