I have a fairly large file (35Gb), and I would like to filter this file in situ (i.e. I don't have enough disk space for another file), specifically I want to grep and ignore some patterns - is there a way to do this without using another file?

Let's say I want to filter out all the lines containing "foo:" for example...

I have a fairly large file (35Gb), and I would like to filter this file in situ (i.e. I don't have enough disk space for another file), specifically I want to grep and ignore some patterns — is there a way to do this without using another file?

Let's say I want to filter out all the lines containing foo: for example...

probably a simple question for you all - I have a fairly large file (35Gb), and I would like to filter this file in situ (i.e. I don't have enough disk space for another file), specifically I want to grep and ignore some patterns - is there a way to do this without using another file?

Let's say I want to filter out all the lines containing "foo:" for example...

I have a fairly large file (35Gb), and I would like to filter this file in situ (i.e. I don't have enough disk space for another file), specifically I want to grep and ignore some patterns - is there a way to do this without using another file?

Let's say I want to filter out all the lines containing "foo:" for example...