Changes between Version 16 and Version 17 of Dvo_tutorial

Timestamp:

May 11, 2009, 12:10:55 AM (17 years ago)

Author:

Sebastian Jester

Comment:

add note on exec and !

Dvo_tutorial

@@ -235 +235 @@
  # Write vectors to file
  write -f "%9.6f %9.6 %6.3f %6.3f %6.3f %6.3f %6.3f %6.3f" PS1_17_35.dat RA DEC g g:err r r:err z z:err
- # Write a column header to a new file
- ! echo ra dec g g_err r r_err z z_err > PS1_17_35_clean.dat
+ # Write a column header to a new file using a command shell
+ exec echo ra dec g g_err r r_err z z_err > PS1_17_35_clean.dat
  # Filter out nans
- !grep -v 'nan' PS1_17_35.dat >> PS1_17_35_clean.dat
+ exec grep -v 'nan' PS1_17_35.dat >> PS1_17_35_clean.dat
+ # NB: In the dvo shell, you can replace 'exec' by '!', e.g.
+ ! ls 
 }}}
 You can save all these commands to a file `makecmd.dvo` (e.g.) and then execute them in a dvo session via