I really appreciate your help!
However, the file is from human genome sequencing (>1G, too large).
I found some other way to do it. Not with Unix. But in R. Although not so efficient.
Anyway, thanks again.
Quote:
Originally Posted by sunny651
Code:
-bash-3.00$ grep --version
grep (GNU grep) 2.5.1
Copyright 1988, 1992-1999, 2000, 2001 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-bash-3.00$
-bash-3.00$ whereis grep
grep: /bin/grep /usr/share/man/man1/grep.1.gz /usr/share/man/man1p/grep.1p.gz
-bash-3.00$ ldd /bin/grep
libpcre.so.0 => /lib/libpcre.so.0 (0x00b17000)
libc.so.6 => /lib/tls/libc.so.6 (0x009c1000)
/lib/ld-linux.so.2 (0x009a8000)
-bash-3.00$
-bash-3.00$ cat /etc/redhat-release
Red Hat Enterprise Linux AS release 4 (Nahant)
-bash-3.00$ bash --version
GNU bash, version 3.00.15(1)-release (i386-redhat-linux-gnu)
Copyright (C) 2004 Free Software Foundation, Inc.
-bash-3.00$
That is my grep version.
You can upload your xxx.txt file if possible for us to test, or check the format of that file.
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LEARN ABOUT HPUX
zgrep
ZGREP(1) General Commands Manual ZGREP(1)NAME
zgrep - search possibly compressed files for a regular expression
SYNOPSIS
zgrep [ grep_options ] [ -e ] pattern filename...
DESCRIPTION
Zgrep invokes grep on compressed or gzipped files. These grep options will cause zgrep to terminate with an error code:
(-[drRzZ]|--di*|--exc*|--inc*|--rec*|--nu*). All other options specified are passed directly to grep. If no file is specified, then the
standard input is decompressed if necessary and fed to grep. Otherwise the given files are uncompressed if necessary and fed to grep.
If the GREP environment variable is set, zgrep uses it as the grep program to be invoked.
EXIT CODE
2 - An option that is not supported was specified.
AUTHOR
Charles Levert (charles@comm.polymtl.ca)
SEE ALSO grep(1), gzexe(1), gzip(1), zdiff(1), zforce(1), zmore(1), znew(1)ZGREP(1)
02-15-2009
I am sorry that my computer is Red Hat Enterprise Linux AS release 4. not FC9. I mistaken it...