How to replace many numbers with one number in a file.
Many numbers like 444565,454678,443298,etc. i want to replace these with one number (300).Please halp me out. (2 Replies)
Hi all,
I need to change the source port number of an outgoing TCP packet. First I have to bind the socket to a particular port(suppose 9001) but when I send the TCP packet I want to change the source port number lets say to 9002 still letting the socket to be bound to the same old port (9001).... (0 Replies)
Hi,
My requirement is I have an input file with a continuous series from 10000 to 99999. I have some numbers missing from those series. I want a output file which produces those missing numbers.
Eg: 10002, 99999 are missing from the series then the output file should contain those... (4 Replies)
Hello All,
I am having problem to find what is the smallest number from 90% of highest numbers from all numbers in file. I am having file with thousands of lines and hundreds of columns.
I am familiar mainly with bash but I am open to whatever suggestion witch will lead to the solutions.
If I... (11 Replies)
out of a range of numbers, how can i pick out the number that is the closest to any arbitrary/random number that a user supplies?
say the range of numbers are between 1 - 90000. but that doesn't mean each number exist between 1 - 90000. the range of numbers could be for example:
1, 3, 4, 6,... (6 Replies)
Hi All,
I am stuck with this problem.
I have some 100000 (.dat) 1.dat, 2.dat,3.dat etc until 100000.dat files which look like this:
1.dat
1
2
3
4
0.99
4.54
All my files 1.dat until 100000.dat look the same but with different numbers.
I have to first add all the numbers in each... (1 Reply)
Hi,
I want to remove the following code from Source files (or replace the code with empty.) from all the source files in given directory.
finally {
if (null != hibernateSession && hibernateSession.isOpen()) {
//hibernateSession.close();
}
}
It would be great if the script has... (2 Replies)
Hi, I have a list.txt file with number ranges and want to print/save new all.txt file with all the numbers and between the numbers.
== list.txt ==
65936
65938
65942 && 65943
65945 ... (7 Replies)
Hi Guys,
how to count number of files successfully copied while coping files from source to destination path
ex:10 files from source to target location copying
if 8 files copied successfully then
echo successfully copied=8
failure=2 files
if two files get error to coping files from... (23 Replies)
Discussion started by: sravanreddy
23 Replies
LEARN ABOUT CENTOS
trace_printk
TRACE_PRINTK(9) Driver Basics TRACE_PRINTK(9)NAME
trace_printk - printf formatting in the ftrace buffer
SYNOPSIS
trace_printk(fmt, ...);
ARGUMENTS
fmt
the printf format for printing
...
variable arguments
NOTE
__trace_printk is an internal function for trace_printk and the ip is passed in via the trace_printk macro.
This function allows a kernel developer to debug fast path sections that printk is not appropriate for. By scattering in various printk
like tracing in the code, a developer can quickly see where problems are occurring.
This is intended as a debugging tool for the developer only. Please refrain from leaving trace_printks scattered around in your code.
(Extra memory is used for special buffers that are allocated when trace_printk is used)
A little optization trick is done here. If there's only one argument, there's no need to scan the string for printf formats. The trace_puts
will suffice. But how can we take advantage of using trace_puts when trace_printk has only one argument? By stringifying the args and
checking the size we can tell whether or not there are args. __stringify((__VA_ARGS__)) will turn into "() " with a size of 3 when there
are no args, anything else will be bigger. All we need to do is define a string to this, and then take its size and compare to 3. If it's
bigger, use do_trace_printk otherwise, optimize it to trace_puts. Then just let gcc optimize the rest.
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 TRACE_PRINTK(9)