ps to png

convert -density 150 -geometry 100% GHASPprova.ps figure.png

TAB SEPARATED READING FILE

IDL:

Result = READ_ASCII( 'filename', delimiter=string(9b))
help, result, /str
; result is a structure
print,result.field1


; for example
name=result.field1(0,*)
zh=result.field1(1,*)
zc=result.field1(3,*)
nz=result.field1(4,*)
vel=result.field1(5,*)

PYTHON

http://www.python.org/

TOPCAT 3D plots

http://www.star.bris.ac.uk/~mbt/topcat/

ftp

http://www.cs.colostate.edu/helpdocs/ftp.html
if it is anonymous: user anonymous.. usually they ask for email as a password
to copy things from ftp to local computer, go to local computer folder, do ftp, then mget *whatever
if you don't want y/n questions, put prompt off before