10-13-2007
count string occurance in a file hourly
Hi! Sorry, I'm just new here and I'm not familiar on the rules. I want to count the ocurrance of like Asynchronous every hour. For example I want to have the count of Asynchronous in 0000H-0059H, 0100H-0159H, and so on. The original file has 24hours data. I have a script that runs everyday and get the the data for previous day. Thanks!
Sample output:
Asynchronous on 2007-10-12 from 0000H to 0059H is <total count>
Successful on 2007-10-12 from 0000H to 0059H is <total count>
Asynchronous on 2007-10-12 from 0100H to 0159H is <total count>
Successful on 2007-10-12 from 0100H to 0159H is <total count> ... and so on.
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LEARN ABOUT OSX
iopending
iopending(1m) USER COMMANDS iopending(1m)
NAME
iopending - plot number of pending disk events. Uses DTrace.
SYNOPSIS
iopending [-c] [-d device] [-f filename] [-m mount_point] [interval [count]]
DESCRIPTION
This samples the number of disk events that are pending and plots a distribution graph. By doing this the "serialness" or "parallelness" of
disk behaviour can be distinguished. A high occurance of a pending value of more than 1 is an indication of saturation.
Since this uses DTrace, only users with root privileges can run this command.
OPTIONS
-c clear screen
-d device
instance name to snoop (eg, dad0)
-f filename
full pathname of file to snoop
-m mount_point
mountpoint for filesystem to snoop
EXAMPLES
Default output, print I/O summary every 1 second,
# iopending
Print 10 second samples,
# iopending 10
Print 12 x 5 second samples,
# iopending 5 12
Snoop events on the root filesystem only,
# iopending -m /
FIELDS
value number of pending events, 0 == idle
count number of samples @ 1000 Hz
load 1 min load average
disk_r total disk read Kb for sample
disk_w total disk write Kb for sample
IDEA
Dr Rex di Bona
DOCUMENTATION
See the DTraceToolkit for further documentation under the Docs directory. The DTraceToolkit docs may include full worked examples with ver-
bose descriptions explaining the output.
EXIT
iopending will run forever until Ctrl-C is hit, or the specified count is reached.
AUTHOR
Brendan Gregg [Sydney, Australia]
SEE ALSO
iosnoop(1M), iotop(1M), dtrace(1M)
version 0.60 Nov 01, 2005 iopending(1m)