Sgrep (sorted grep) is a much faster alternative to traditional Unix grep when searching large files, because sgrep searches sorted input files using a fast binary search to find matching lines.
filterin filters lines of text from standard
input to standard output. In simple terms,
think of it as the reverse of grep. filterin
is case insensitive.
filterif filters lines of text from standard
input to standard output. In simple terms,
think of it as the reverse of grep. filterif
is case sensitive.