I need a command, which could run mutliple commands from a file.
Let's say, I have
mv fileA1 fileB1
mv fileA2 fileB2
.....
mv fileA20 fileB20
I put these commands in a file, then I need a command to run the file as a whole so that I don't need to type 20 times...
Anyone tell me how to... (8 Replies)
Hi all,
I have created a script which adding two columns and removing two columns for all files.
Filename: Cust_information_1200_201010.txt
Source Data:
"1","Cust information","123","106001","street","1-203 high street"
"1","Cust information","124","105001","street","1-203 high street"
... (0 Replies)
Hello Team,
I have written following command which is giving output is as shown below.
bash-3.00$ grep -i startup catalina.out | tail +2 | sed -n 1p | awk -F" " '{ for (x=1; x<=5; x++) { printf"%s\n", $x } }'
Dec
19,
2010
3:28:39
PM
bash-3.00$
I would like to modify above command to... (2 Replies)
is there a way with sed to removed more than one set of lines in one line?
so i mean
sed ${firstElem},${lastIndex}d web.xml > web1.xml
this will delete lines between ${firstElem},${lastIndex}
i want in the same line to do somethinkg like this (doesn't work so far)
sed... (3 Replies)
Hi,
I have catenated multiple output files (from a monte carlo run) into one big output file. Each individual file has it's own two line header. So when I catenate, there are multiple two line headers (of the same wording) within the big file. How do I use the sed command to search for the... (1 Reply)
Hi,
I have a directory /home/datasets/ which contains a bunch (720) of subdirectories called hour_1/ hour_2/ etc..etc.. in each of these there is a single text file called (hour_1.txt in hour_1/ , hour_2.txt for hour_2/ etc..etc..) and i would like to do some text processing in them.
Each of... (20 Replies)
Hi Experts ,
we have a CDC file where we need to get the latest record of the Key columns
Key Columns will be CDC_FLAG and SRC_PMTN_I
and fetch the latest record from the CDC_PRCS_TS
Can we do it with a single awk command.
Please help.... (3 Replies)
RHEL 6.2/Bash shell
root user will be executing the below script. It switches to oracle user and expect to do the following things
A. Source the environment variables for BATGPRD Database (the file used for sourcing is shown below after the script)
B. Shutdown the DB from sqlplus -- The... (13 Replies)
Hello,
I'm attempting to open multiple xterms and run a command as an SAP user via sudo using PSSH. So far, I'm able to run PSSH to a file of servers with no check for keys, open every xterm in to the servers in the file list, and SUDO to the SAP(ADM) user, but it won't do anything else... (11 Replies)
Discussion started by: icemanj
11 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)