IFS - Set back to space

[Simpson]

Hello,

I have a (KSH) script that interprets different input squences and processes them. The first of which is a CSV so I have set IFS to comma with:
IFS=,

Now later in my script I am reading input in from a grep command and would like to:
grep $i $file |read var1 var2 var3 ....

How do I set my IFS back to spaces. Here is what I have tried thus far:
IFS=
IFS=""
IFS=" "
IFS=''
IFS=' "

Any help would be greatly appreciated.
Mike

[James R. Ferguson · Accepted solution]

Hi Mike:

Simply do:

OLDIFS=${IFS}
IFS=":" #...or whatever...
IFS=${OLDIFS}
...

Regards!

...JRF...

[Simpson]

That was PERFECT. thank you so very very much. Great responce and timely.

[James R. Ferguson]

Hi (again) Mike:

By the way, the default shell IFS is a combination of space, tab, and newline which is why you failed to restore the behavior you thought your were.

Regards!

...JRF...