Hello:
I'm a very newbee at UNIX/AIX.
What i want to do is to tail a file from the bottom until a certain string is found and write all the lines after the found string to another file.
I've tried out a lot of combination with tail and grep but doesn't find the good one.
Could someone help... (4 Replies)
Hello all,
I have some weird problem that kinda baffles me. Say I have the following test file:
claudia:~/tmp$ cat testfile.txt
This is a test line
This is the second test line
And yeah, this is the third test line
Then say I want to tail the file, grep for the word "third" then... (7 Replies)
I'm trying to use tail/grep to monitor a log file. The command I cooked up is:
tail -n 50 -f output.log | grep 'type:system' | cut -f 5-
A sample line from the log file is:
1208894862 type:system session:0 severity:4 load started
the columns are tab delimited.
this works ok, except... (3 Replies)
Hi,
I am writing a shell script that checks catalina logs on a production system and mails me if it detects errors.
It greps the logs for known errors which i have defined as variables.
The problem is the logs are huge, approx 30,000 before they rotate.
So I am forced to use grep instead... (3 Replies)
The program that is running on my machine generates log files. I want to be able to know the number of lines that contain "FT" in the most recent log file. I wrote the following, but it always returns zero. And I know the count is not zero. Any ideas?
ls -rt *.log | tail -n 1 | grep -c FT (6 Replies)
I have a basic tail/grep question. I have logs that are generated & kept in a directory called alert_audit. I am using "tail" to see the logs that are coming in, but I only need logs that contain the IP address 10.249.185. or 10.247.231.
Here is the command I have, but it pulls all IP... (3 Replies)
Hi -- I'm looking to write to a file after piping output from tail -f through to grep:
#write to a file for all lines with "searchtext" within in error_log:
Expand|Select|Wrap|Line Numbers
tail -f /var/error_log | grep searchtext > output.txt
The above command... (2 Replies)
Hi
I have a file which is updated very frequently.
Where in i wanted to use tail -f command in the script and wanted to grep for a particular word.
But the issue is when i use tail -f filename|grep "word" ...
it will show me blank until the word is found in the real time. if it shows... (13 Replies)
hi guys,
I perform a sort of monitoring. I have a server running and with
tail -f | grep "Searchstring"I monitor the log-file for recent specific entries. This is ok and works fine.
Now, in addition I want to have my search results not posted into the shell but into a file. I tried:
tail... (3 Replies)
Good Morning,
i ran into some trouble this morning while 'improving' my monitoring stuff. i would like to get a warning when the number of mails sent (outbound) by postfix is above a certain number. so far, so easy. to test that i simply put
cat /var/log/mail.info | grep 'to=<' | grep -v -e... (1 Reply)
Discussion started by: Mike
1 Replies
LEARN ABOUT DEBIAN
qwtscalearithmetic
QwtScaleArithmetic(3) Qwt User's Guide QwtScaleArithmetic(3)NAME
QwtScaleArithmetic -
Arithmetic including a tolerance.
SYNOPSIS
#include <qwt_scale_engine.h>
Static Public Member Functions
static double ceil125 (double x)
static double ceilEps (double value, double intervalSize)
static int compareEps (double value1, double value2, double intervalSize)
static double divideEps (double interval, double steps)
static double floor125 (double x)
static double floorEps (double value, double intervalSize)
Detailed Description
Arithmetic including a tolerance.
Member Function Documentation
double QwtScaleArithmetic::ceil125 (doublex) [static] Find the smallest value out of {1,2,5}*10^n with an integer number n which is greater
than or equal to x
Parameters:
x Input value
double QwtScaleArithmetic::ceilEps (doublevalue, doubleintervalSize) [static] Ceil a value, relative to an interval
Parameters:
value Value to ceil
intervalSize Interval size
See also:
floorEps()
int QwtScaleArithmetic::compareEps (doublevalue1, doublevalue2, doubleintervalSize) [static]
Compare 2 values, relative to an interval. Values are 'equal', when : $
Parameters:
value1 First value to compare
value2 Second value to compare
intervalSize interval size
Returns:
0: if equal, -1: if value2 > value1, 1: if value1 > value2
double QwtScaleArithmetic::divideEps (doubleintervalSize, doublenumSteps) [static]
Divide an interval into steps. $stepSize = (intervalSize - intervalSize * 10e^{-6}) / numSteps$.PP Parameters:
intervalSize Interval size
numSteps Number of steps
Returns:
Step size
double QwtScaleArithmetic::floor125 (doublex) [static]
Find the largest value out of {1,2,5}*10^n with an integer number n which is smaller than or equal to x. Parameters:
x Input value
double QwtScaleArithmetic::floorEps (doublevalue, doubleintervalSize) [static] Floor a value, relative to an interval
Parameters:
value Value to floor
intervalSize Interval size
See also:
floorEps()
Author
Generated automatically by Doxygen for Qwt User's Guide from the source code.
Version 5.2.2 Mon Aug 1 2011 QwtScaleArithmetic(3)