Hi All,

I want to delete the contents of few files which are really huge in size.
How the same can be done by using sed. Is there any other alternative to sed.

Thanks in advance

Without using sed.

or

for huge files,
this would be faster

sed '1q' inputfile >tmp
mv tmp inputfile

will not remove the first line.

sed '' filename > filename works!!

Madhan,
Can u pls explain cp /dev/null.. What is the advantage it brings over sed/ others...

Thanks
Sumesh

Forgot to add -n option

FWIW -
is the fastest call, as it truncates the file. And any command, like the sed example above, that has "sed ' ' file > file" in it already sets the file size to zero before running sed. So the sed call (or any call ) is doing nothing because the file is already empty before sed executes.