File and Put to first blank line

[Brian3]

Hi,

I have a simple problem (I hope). I am using file and put to write text to a different sas program. For example

data _null_;

file "filepath.sas";

put "x=1";

run;

Please  can you tell me how I make it so the code writes the text to the first blank line of "filepath.sas". This is so when I run this again but with different text e.g. put "y=2", it doesn't overwrite the x=1, but adds to it underneath.

Thank you

[data_null__ · Accepted solution]

You need to use the FILE statement option MOD.  

[Brian3]

Thanks very much guys, just what was needed

[Tom]

It would be very hard to locate and overwrite the first blank line.  But as @data_null__ says it is very easy to just append to a file by adding the MOD option to the FILE statement.