Greetings.
I am struggling with a shell script to make my life simpler, with a number of practical ways in which it could be used. I want to take a standard text file, and pull the 'n'th word from each line such as the first word from a text file.
I'm struggling to see how each line can be... (5 Replies)
Can any one help us in finding the the last word of each line from a text file and print it.
eg:
1st --> aaa bbbb cccc dddd eeee ffff ee
2nd --> aab ered er fdf ere ww ww f
the o/p should be a below.
ee
f (1 Reply)
Hi people;
i want to read the last word of the 14th line of my file1.txt. Here is the EXACT 14th line of the file.
250 SectorPortnum=3,AuxPortInUngo=2,PortDeviceGroup=1,PortDeviceSet=1,PorDevice=1 20 >>> Set.
i have to get the word Set. how can i call it and also how... (3 Replies)
Hi
I have requirement to find nth occurrence in a file and capture data from with in lines (between lines)
Data in File.
<QUOTE>
<SESSION>
<ATTRIBUTE NAME='Parameter Filename' VALUE='file1.parm'/>
<ATTRIBUTE NAME='Service Name' VALUE='None'/>
</SESSION>
<SESSION>
<ATTRIBUTE... (6 Replies)
I have an awk script to find the maximum value of the 2nd column of a 2 column datafile, but I need to find the top 5 maximum values of the 2nd column.
Here is the script that works for the maximum value.
awk 'BEGIN { subjectmax=$1 ; max=0} $2 >= max {subjectmax=$1 ; max=$2} END {print... (3 Replies)
Hi i am new in scripting
how i can get 2 elements from first line of delimited txt file in shell scripts.
AA~101010~0~AB~8000~ABC0~
BB~101011~0~BC~8000~ABC~
CC~101012~0~CD~8000~ABC0~
DD~101013~0~AB~8000~ABC~
AA~101014~0~BC~8000~ABC0~
CC~101015~0~CD~8000~ABC~
can anyone plse help?... (3 Replies)
Hi..
May be a simple question but I just began to write unix scripts a week ago, for sorting some huge amount of experiment data, so I got no common sense about unix scripting and really need your helps...
The situation is, I want to read the nth word of mth line in a file, and then store it... (3 Replies)
Hi,
I am trying to find the lines in a pipe delimited file where 11th column has not null values. Any help is appreciated. Need help asap please.
thanks in advance. (3 Replies)
I have a file: file.txt, which contains the following data in it.
This is a file, my name is Karl, what is this process, karl is karl junior, file is a test file, file's name is file.txt
My name is not Karl, my name is Karl Joey
What is your name?
Do you know your name and... (3 Replies)
Discussion started by: anuragpgtgerman
3 Replies
LEARN ABOUT CENTOS
wdmd
WDMD(8) System Manager's Manual WDMD(8)NAME
wdmd - watchdog multiplexing daemon
SYNOPSIS
wdmd [OPTIONS]
DESCRIPTION
This daemon opens /dev/watchdog and allows multiple independent sources to detmermine whether each KEEPALIVE is done. Every test interval
(10 seconds), the daemon tests each source. If any test fails, the KEEPALIVE is not done. In a standard configuration, the watchdog timer
will reset the system if no KEEPALIVE is done for 60 seconds ("fire timeout"). This means that if a single test fails 5-6 times in row,
the watchdog will fire and reset the system. With multiple test sources, fewer separate failures back to back can also cause a reset, e.g.
T seconds, P pass, F fail
T00: test1 P, test2 P, test3 P: KEEPALIVE done
T10: test1 F, test2 F, test3 P: KEEPALIVE skipped
T20: test1 F, test2 P, test3 P: KEEPALIVE skipped
T30: test1 P, test2 F, test3 P: KEEPALIVE skipped
T40: test1 P, test2 P, test3 F: KEEPALIVE skipped
T50: test1 F, test2 F, test3 P: KEEPALIVE skipped
T60: test1 P, test2 F, test3 P: KEEPALIVE skipped
T60: watchdog fires, system resets
(Depending on timings, the system may be reset sometime shortly before T60, and the tests at T60 would not be run.)
A crucial aspect to the design and function of wdmd is that if any single source does not pass tests for the fire timeout, the watchdog is
guaranteed to fire, regardless of whether other sources on the system have passed or failed. A spurious reset due to the combined effects
of multiple failing tests as shown above, is an accepted side effect.
The wdmd init script will load the softdog module if no other watchdog module has been loaded.
wdmd cannot be used on the system with any other program that needs to open /dev/watchdog, e.g. watchdog(8).
Test Source: clients
Using libwdmd, programs connect to wdmd via a unix socket, and send regular messages to wdmd to update an expiry time for their connection.
Every test interval, wdmd will check if the expiry time for a connection has been reached. If so, the test for that client fails.
Test Source: scripts
wdmd will run scripts from a designated directory every test interval. If a script exits with 0, the test is considered a success, other-
wise a failure. If a script does not exit by the end of the test interval, it is considered a failure.
OPTIONS --version, -V
Print version.
--help, -h
Print usage.
--dump, -d
Print debug information from the daemon.
--probe, -p
Print path of functional watchdog device. Exit code 0 indicates a
functional device was found. Exit code 1 indicates a functional device
was not found.
-D
Enable debugging to stderr and don't fork.
-H 0|1
Enable (1) or disable (0) high priority features such as realtime
scheduling priority and mlockall.
-G name
Group ownership for the socket.
-S 0|1
Enable (1) or disable (0) script tests.
-s path
Path to scripts dir.
-k num
Kill unfinished scripts after num seconds.
-w path
The path to the watchdog device to try first.
2011-08-01 WDMD(8)