output redirect back to file
 

Is there a way to do the following:

without doing

basically, sort the file and put the output back in the file without having to generate an intermediate file

To do this process with a script is pretty easy.
And .... I thought I have seen it done via command line by using the < redirect sysbol to direct the output back into the origial file ....but i tried it on RH and it did not work as expected. I would recommend using a script anyway to save possible data corruption. Just my 2cents. :D