10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi.. I have a file that has the following content :
abc 213 24 213
pqr 456#34 678
xyz 213 45%213
i need to write an awk script that will replace the second 213 in all the lines, if it is present. The IFS can not be specified and can be random.
The number of lines in the file and the... (5 Replies)
Discussion started by: Hermione Grange
5 Replies
2. Shell Programming and Scripting
Hello members,
I been following this forums since very long time.
I need to do one job.
In my script I am evaluating one variable, lets say n=100.
Now i have xml file inside which i need to replace the numbers in the desired lines with the evaluated number(n) +1.
For example let's say... (4 Replies)
Discussion started by: mailtosaiki
4 Replies
3. Shell Programming and Scripting
The question is not as simple as the title... I have a file, it looks like this
<string name="string1">RZ-LED</string>
<string name="string2">2.0</string>
<string name="string2">Version 2.0</string>
<string name="string3">BP</string>
I would like to check for duplicate entries of... (11 Replies)
Discussion started by: raidzero
11 Replies
4. Shell Programming and Scripting
Hi forum.
How do I change the following date value with another value (while keeping the rest of the line) using sed? The date values can change so I need a general sed command to change the date value within the first quotation marks only.
Date values will be coming from 2 different files.... (2 Replies)
Discussion started by: pchang
2 Replies
5. Shell Programming and Scripting
I'm trying to figure out a way to replace newlines after a unique string is read, all the way until that string occurs again.
The input file looks something like this:
02/11/11 22:48:00 This is the first line
This is the second line
This is the third line
02/11/11 22:49:00 This is the... (8 Replies)
Discussion started by: acruhl
8 Replies
6. Shell Programming and Scripting
Hey everyone!
Simple question - I am trying to use sed to replace two different strings. As it stands I can implement this as:
sed -i 's/TIMEOUT//g'
sed -i 's/null//g'
And it works. However, is it possible to shrink that down into a single command? Will there be any performance benefits? (3 Replies)
Discussion started by: msarro
3 Replies
7. Shell Programming and Scripting
Hi All,
I just need to do find and replace in a file....
say for eg I have the input file like below:
in.txt
#####
oldtextoldtext
oldtext
oldtext
oldtext
oldtext123
oldtext-
oldtext
I need to replace oldtext to newtext... my output file should come like below..
out.txt... (9 Replies)
Discussion started by: askumarece
9 Replies
8. UNIX for Dummies Questions & Answers
Hello Can Any1 help me.
I want to replace a specific character string inside a file at a specific location with a particular character with the help of a command or a shell script.
The tr command replaces a specific character with another for all the occurences of that character in the file.
I... (5 Replies)
Discussion started by: rahulrathod
5 Replies
9. Shell Programming and Scripting
how do i replace a string within two strings ?. i have a string called my_string i.e
my_string="GACAHX04GAC010000000001DDELTA 0001DAT00001320SLTZ"
i need to replace all characters between DAT and SLTZ with zeros, the number of characters between these strings might vary .
i.e
output
... (1 Reply)
Discussion started by: amit1_x
1 Replies
10. Shell Programming and Scripting
Hi
I want to change the following
passwd: files nis
group: files nis
in /etc/nsswitch.conf
to be
passwd: files compat
group: files compat
I tried
cp -p nsswitch.conf nsswitch.conf.old (3 Replies)
Discussion started by: melanie_pfefer
3 Replies
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)