How to replace/substitute a character in a 20GB file without opening it.

[siri2403]

Hi,

I have a 20gb file which is having a bad character repeating throughout
i would like to replace it with some other character, with out opening the file.

normally i would have used a sed command
sed 's/bad_char/new_char/' <old_file >new_file

but i am not sure it would work on such a huge file......

or is there any other way in which the big files have to behandled other than sed....

Please help me regarding this....

Thanks in advance
Siri.

[ashitpro]

Hi,

I have a 20gb file which is having a bad character repeating throughout
i would like to replace it with some other character, with out opening the file.

normally i would have used a sed command
sed 's/bad_char/new_char/' <old_file >new_file

but i am not sure it would work on such a huge file......

or is there any other way in which the big files have to behandled other than sed....

Please help me regarding this....

Thanks in advance
Siri.

well,
I guess 'sed' will be the best option for this job.
try it out and see how much time it takes