On Wed, 29 Nov 2006, Kris Kennaway wrote:
On Wed, Nov 29, 2006 at 03:10:33PM -0500, van Osnabrugge, Sean wrote:
I am running a fresh install of FreeBSD-6.1-Stable as a guest OS in VMWare
1.0.1 with 1 GB of RAM.
Whenever I try to grep a large text file (400 MB+), grep terminates with
"grep: memory exhausted"
I have tried piping grep (cat "file" | grep "search term")
I have tried it with -line-buffered
ulimit -a show:
core file size (blocks, -c) unlimited
data seg size (kbytes, -d) 524288
Try increasing this. I think grep mmaps the file, so the large file could
be exceeding your limit.
I regularly grep multi-hundred-gigabyte files without a problem on boxes with
very little memory, so simple file size is unlikely the cause. However, it
would be interesting to know how many lines "wc -l" thinks the text file has,
and what the length of the longest line is.
Robert N M Watson
Computer Laboratory
University of Cambridge
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