12-20-2007
Quote:
Originally Posted by
pankai
I met a problem in using grep -P.
There is a text file, temp.txt, whose content is:
dddd
abc
I ran the command:
grep -P "\s*abc" temp.txt
The result I expected is:
abc
But, the actual result is:
dddd
abc
Could anyone tell me what is wrong?
Thanks.
\s in perl includes \n so the pattern matches
dddd\nabc
Depending on your requirements you could do a "^\s*abc" or "\w*abc"
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LEARN ABOUT DEBIAN
fs_whereis
FS_WHEREIS(1) AFS Command Reference FS_WHEREIS(1)
NAME
fs_whereis - Reports each file server housing a file or directory
SYNOPSIS
fs whereis [-path <dir/file path>+] [-help]
fs whe [-p <dir/file path>+] [-h]
DESCRIPTION
The fs whereis command returns the name of each file server machine that houses the volume containing each directory or file named by the
-path argument.
OPTIONS
-path <dir/file path>+
Names each AFS file or directory for which to return the host file server machine. Partial pathnames are interpreted relative to the
current working directory, which is also the default value if this argument is omitted.
-help
Prints the online help for this command. All other valid options are ignored.
OUTPUT
The output includes a line for each specified directory or file. It names the file server machine on which the volume that houses the
specified directory or file resides. A list of multiple machines indicates that the directory or file is in a replicated volume.
Machine names usually have a suffix indicating their cell membership. If the cell is not clear, use the fs whichcell command to display the
cell in which the directory or file resides. To display the cell membership of the local machine, use the fs wscell command.
EXAMPLES
The following example indicates that volume housing the directory /afs/abc.com resides is replicated on both "fs1.abc.com" and
"fs3.abc.com":
% fs whereis -path /afs/abc.com
File /afs/abc.com is on hosts fs1.abc.com fs3.abc.com
PRIVILEGE REQUIRED
None
SEE ALSO
fs_whichcell(1), fs_wscell(1)
COPYRIGHT
IBM Corporation 2000. <http://www.ibm.com/> All Rights Reserved.
This documentation is covered by the IBM Public License Version 1.0. It was converted from HTML to POD by software written by Chas
Williams and Russ Allbery, based on work by Alf Wachsmann and Elizabeth Cassell.
OpenAFS 2012-03-26 FS_WHEREIS(1)