Running catview from a script

In order to run catview from a script simply type the commands and responses that you would have issued interactively into a text file. They should be typed exactly as you would enter them interactively.

Figure  shows an example of a script for catview. It selects quasars with redshift greater than three and brighter than nineteenth magnitude from a catalogue⁸and writes selected columns from the subset to a file in a format suitable for passing to subsequent applications (that is, without any annotation). The individual commands are:

OPEN

Open the catalogue, here called `qsover'.

SETSEL

Select the objects with redshift greater than three and brighter than nineteenth magnitude.

SETCMP

Specify the columns to be listed: ra, dec, redshift, v.

SETFILE

Set the configuration options for the information to be included in the text file. The options given correspond to including only the specified columns, without any annotation.

FILE

Write the text file. All the rows in the selection are written to file qso.lis.

EXIT

Terminate catview.

Figure: Example script for catview

To run catview from a script simply use Unix's input redirection mechanism:

catview < catview_script.lis

where catview_script.lis is the name of the script.