make the cl not complain about files existing?

sirmarcos wrote on Feb 07, 2006

Hello,

So, I write a wide range of iraf cl scripts and one thing I often do is use hselect to create file lists. So something like:

hselect *.fits $I, expr="imagetyp == 'object'" > object_list

However, if I ever run the script again, the cl whines that it can't write to the file object_list, because it already exists.

Any way to make the darn CL just overwrite on a > like any unix script would? Perhaps some other character other than >... or whatever? I know in tcsh there's some noclobber variable that has to be set to prevent overwriting... perhaps there's some analogous clobber variable in IRAF?

Marcos

---

Mike Fitzpatrick wrote on Feb 07, 2006

Just set the 'clobber' CL variable, e.g.

cl> show clobber
no
cl> type hlib$motd > foobar
cl> type hlib$motd > foobar
ERROR: cannot open `foobar' for writing
cl> reset clobber = yes
cl> type hlib$motd > foobar

There is an analogous 'imclobber' var. Use both with care.

-Mike

---

Last post on Feb 07, 2006