Nikolaos A. Patsopoulos wrote:
Hi all,
I'm very sorry to bother the list with this problem but I've been
searching in the web the couples hours to find an answer and still
haven't find any.
The problem is that I have a txt file of 3.5GB containing all the info
of Human chromosome 6. I want to save into one another file all lines
that have the pattern rs10946398 (occurring only ones). I know that vi
cannot handle files so big. I used ed in Fedora5 but this too cannot
stream it. I hope that grep or sed can do this but cannot figure how to.
I tried the following for sed but doesn't work:
sed '/rs10946398/p' chr6.txt
Can someone help?
Thank in advance,
Nikos
grep rs10946398 < chr6.txt > chr6.extract.txt
Grep is a filter, remember? It takes its input from stdin, writes its output
on stdout, and the regexp is on the command-line. The output consists of all
input lines matching the pattern.
Since in this case the pattern is a fixed string, we can also use fgrep (or
grep -F) instead of grep.
Best regards,
Tony.
--
hundred-and-one symptoms of being an internet addict:
213. Your kids start referring to you as "that guy in front of the monitor."
