02-01-2007
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I have a file given below. I want to split the file where ever I came across
***(instead you can put ### symbols in the file) . Also I need to name the file by extracting the report name from the first line which is in bold(eg:RPT507A) concatinated with DD(day on which the file runs). Can someone... (1 Reply)
Discussion started by: srivsn
1 Replies
2. Shell Programming and Scripting
Can any one help me to correct following script.
I have 2 directories DropZone and ProcessZone. File pattern is *VEHDESCSUM*.
Finding the 'no of files' in DropZone directory using ls *VEHDESCSUM* |wc -l
If DropZone has more than one file or 0 files then exit 1
If DropZone has one file then... (2 Replies)
Discussion started by: ramanagh
2 Replies
3. Shell Programming and Scripting
Hi,
I have a comma separated file with millions of records in it.
I have a requirement to split the file based on the value in a one of the columns.
Suppose i have a text file with columns like C1, C2,C3,C4
Column C4 can hold the values either 01 or 02 03 or 04.
I nned to extract... (2 Replies)
Discussion started by: Raamc
2 Replies
4. Shell Programming and Scripting
Hi
i am new to scripting. i have a file file.dat with content as :
CONTENT_STORAGE PERCENTAGE FLAG:
/storage_01 64% 0
/storage_02 17% 1
I need to update the value of FLAG for a particular CONTENT_STORAGE value
I have written the following code
#!/bin/sh
threshold=20... (1 Reply)
Discussion started by: kichu
1 Replies
5. Shell Programming and Scripting
Hello,
I have File1 in a directory A, a File2 in a directory B.
If the File2 is not empty
Then I have to move File1 from directory A to a directory archive
Else no action.
Is it possible to do this from one command line?
Thank you in advance for your answers.
Madi (2 Replies)
Discussion started by: AngelMady
2 Replies
6. Shell Programming and Scripting
Hi, Gurus,
I got a problem to resolve following issue:
I have one file file1as following:
start_dt=2010-01-01 12:00:02
start_dt=2011-01-01 09:00:02
start_dt=2009-01-01 11:00:02I have another file file2 as following:
title1, 2010-01-03 10:00:02
title2, 2011-01-04 11:00:02
title3,... (5 Replies)
Discussion started by: ken002
5 Replies
7. Shell Programming and Scripting
Experts,
What would be the code in ksh/perl to read 2 files alternatively, based on the following condition.
while reading file 1 we check if a blank line is encountered,
if yes, then we read file 2 unless a blank line is encountered in file 2
if we have a blank line in file 2 we come back... (3 Replies)
Discussion started by: suraj.sheikh
3 Replies
8. Shell Programming and Scripting
I collect data in a file in below format(Month Day Year Size) in RedHat Linux. Now i want to calculate the data size date wise. As i code shell script after long time, i forgot the features and syntax. Can anyone help me regard this please.
Feb 8 2014 15
Feb 10 2014 32
Feb 10 2014 32
Feb 12... (2 Replies)
Discussion started by: makauser
2 Replies
9. Shell Programming and Scripting
I want to keep last 2 days data from a file and want to delete others data from the file. Please help me.
Sample Input
# cat messages-2
Apr 15 11:25:03 test1 kernel: imklog 4.6.2, log source = /proc/kmsg started.
Apr 15 11:25:03 test1 rsyslogd: (re)start
Apr 16 19:42:03 test1 kernel:... (2 Replies)
Discussion started by: makauser
2 Replies
10. Shell Programming and Scripting
I have an input file like this...
All iI want to do is If the lines are identical except for the last field i want to merge them into single line
input_file
I feel something is nothing
I feel something is everything
apple mango banana
apple mango grapes
I want to get output like this:... (3 Replies)
Discussion started by: raj_k
3 Replies
LEARN ABOUT DEBIAN
sam_overview
SAM_OVERVIEW(8) Corosync Cluster Engine Programmer's Manual SAM_OVERVIEW(8)
NAME
sam_overview - Overview of the Simple Availability Manager
OVERVIEW
The SAM library provide a tool to check the health of an application. The main purpose of SAM is to restart a local process when it fails
to respond to a healthcheck request in a configured time interval.
During sam_initialize(3), a duplicate copy of the process is created using the fork(3) system call. This duplicate process copy contains
the logic for executing the SAM server. The SAM server is responsible for requesting healthchecks from the active process, and controlling
the lifecycle of the active process when it fails. If the active process fails to respond to the healthcheck request sent by the SAM
server, it will be sent a user configurable signal (default SIGTERM) to request shutdown of the application. After a configured time
interval, the process will be forcibly killed by being sent a SIGKILL signal. Once the active process terminates, the SAM server will cre-
ate a new active process.
The Simple Availability Manager is meant to be used in conjunction with the cpg service. Used together, it is possible to restart a cpg
process that fails healthchecking during operation.
The main features of SAM include:
o A configurable recovery policy.
o A configurable time interval for health check operations.
o A notification via signal before recovery action is taken.
o A mechanism to indicate to the application the number of times an active process has been created by the SAM server.
o Both application driven health checking and event driven health checking.
Initializing SAM
The SAM library is initialized by sam_initialize(3). sam_initalize(3) may only be called once per process. Calling it more then once has
undefined results and is not recommended or tested.
Setting warning callback
User configurable signal (default SIGTERM) is sent to the application when a recovery action is planned. The application can use the sig-
nal(3) system call to monitor for this signal.
There are no special constraints on what SAM apis may be called in a warning callback. After time_interval expires, a SIGKILL signal is
sent to the active process to force its termination.
Registering the active process
The active process is registered with SAM by calling sam_register(3). This function should only be called one time in a process. After a
recovery action is taken, the new active process will begin execution at the next line of code in a user process after sam_register(3).
Enabling event driven healthchecking
Two types of healthchecking are available to the user. The first model is one where the user application healthchecks during its normal
operation. It is never requested to healtcheck, and if the active process doesn't respond within the time interval, the process will be
restarted.
A more useful mechanism for healthchecking is event driven healthchecking. Because this model is directed by the SAM server, It isn't nec-
essary to guess or add timers to the active process to signal a healthcheck operation is successful. To use event driven healthchecking,
the sam_hc_callback_register(3) function should be executed.
BUGS
SEE ALSO
sam_initialize(3), sam_finalize(3), sam_start(3), sam_stop(3), sam_register(3), sam_warn_signal_set(3), sam_hc_send(3), sam_hc_call-
back_register(3)
corosync Man Page 12/01/2009 SAM_OVERVIEW(8)