Assuming this is a Linux kernel, have you tried looking in the /sys filesystem?
It's all driver and device specific, so I can't give you any better answers in this case off-hand, but here's some examples from a system of mine with FC storage:
That is *much* easier to parse...
Hello,
I looking to use grep to return a string with exactly n matches.
I'm building off this:
ls -aLl /bin | grep '^.\{9\}x' | tr -s ' '
-rwxr-xr-x 1 root root 632816 Nov 25 2008 vi
-rwxr-xr-x 1 root root 632816 Nov 25 2008 view
-rwxr-xr-x 1 root root 16008 May 25 2008... (7 Replies)
Hello,
Thanks in advance for the query.
There is a log file abcd.log which has multible line like this.
"hello1" , "hello2", "hello3" , "hello4" , "hello5"
I want to grep for the lines which has "hello4" & "hello5" and use "hello2" to grep the same log file again.
All these should... (8 Replies)
Hello Everyone,
I just started scripting this week. I have no background in programming or scripting.
I'm working on a script to grep for a variable in a log file
Heres what the log file looks like. The x's are all random clutter
xxxxxxxxxxxxxxxxxxxxx START: xxxxxxxxxxxx... (7 Replies)
Hi,
I have two variables x and y.
i need to find a particular string in a file, a workflow name and then insert the values of x and y into the next lines of the workflow name.
basically it is like as below
wf_xxxxxx
$$a=
$$b=
$$c= figo
$$d=bentley
i need to grep the 'wf_xxxx' and then... (6 Replies)
I am attempting to grep an exact string from a series of files within a directory and append that output to the filename when it is present in the file. I've been after this all day with no luck. Thanks for your help in advance :wall:. (4 Replies)
Hi,
I have a list of zipped files. I want to grep for a string in all files and get a list of file names that contain the string. But without unzipping them before that, more like using something like gzcat.
My OS is:
SunOS test 5.10 Generic_142900-13 sun4u sparc SUNW,SPARC-Enterprise (8 Replies)
Hi ,
am getting output file, it sontains the below values.
./hawk_DOM1_FIRST_ENV
./hawk_DOM2_SECOND_ENV
./hawk_DOM3_THIRD_ENV
Now I need to grep the word "DOM1_FIRST_ENV","DOM2_SECOND_ENV"
like that.
I tired with cut -d "_". Its not working with any deleimiter.
Can you please help to... (3 Replies)
I have a large dataset with following structure;
C 0001 Carbon
D SAR001 methane
D SAR002 ethane
D SAR003 propane
D SAR004 butane
D SAR005 pentane
C 0002 Hydrogen
C 0003 Nitrogen
C 0004 Oxygen
D SAR011 ozone
D SAR012 super oxide
C 0005 Sulphur
D SAR013... (3 Replies)
For example: I am grepping "Hello" from a file and there are 10 matches. So all ten lines with match will get stored into a variable($match). Now I want to ignore those lines which have "Hi" present in that.
Currently I tried this: match = grep "Hello" file | grep -v "Hi" file
But that's not... (2 Replies)
Discussion started by: pavan
2 Replies
LEARN ABOUT DEBIAN
sraw
SRAW(8) System Manager's Manual SRAW(8)NAME
sraw - benchmark raw scsi I/O performance under linux
SYNOPSIS
sraw [ -fiv6 ] scsi-device [ bstart [ bstep ] ]
DESCRIPTION
This program basically reads the specified scsi device and measures the throughput. Note that the filesystem *AND* the buffer cache are
bypassed by this code, this program was designed to benchmark the naked scsi drivers by themselves without the need to account for the
overhead of any other portion of the kernel. It also could be used to benchmark disk read throughput.
This program does a series of reads of the disk, of consecutive areas on the disk. The device is first queried to determine the sector
size for the device, and then the series of reads is begun. About 5.0 Mb is read from the device, and then the performance numbers are
reported. Note that since the buffer cache is completely bypassed, there is no need to be concerned about cache hits or anything.
Output of sraw is a set of lines, 4 numbers per line: blocksize, elapsed time, nblocks and throughput (in bytes per second).
scsi-device is either a block device (e.g. /dev/sda, /dev/scd0) or a generic SCSI device (e.g. /dev/sg0).
OPTIONS -f set FUA (Force Unit Access) bit during read. Data is then read from media instead of internal drive cache.
-i use legacy ioctl instead of new SG I/O layer (will not work on 2.6 kernel and block devices).
-v more verbose output.
-6 use 6-bytes instead of 10-bytes read command. In this case, only the first GB of data could be read from media.
bstart starting block to check different zones on ZBR discs
bstep factor for sequential stepping, default 1. Use 0 for reading always the same blocks (from cache)
ERRORS
sraw could issue input/output errors when reading too many blocks at the same time from a block device like /dev/sda. To get rid of them,
use /dev/sgN instead.
AUTHOR
sraw was first written by Eric Youngdale. Extensions (-v, -f, -6, SG IO, man page) were written by Eric Delaunay.
SEE ALSO sg_dd(8) from sg3-utils package.
AVAILABILITY
sraw is available at
ftp://tsx-11.mit.edu/pub/linux/ALPHA/scsi/
Nov 1993 SRAW(8)