Hi, Im very new to the world of sed so I'm really not even sure if this is possible. What i need to do is read from a flat file and every time i see this line:
VAL=123,456
I need to change 456 to 457 for every occurence of this line in the file. The numbers 123 and 456 are different for... (6 Replies)
Hi all,
I know this question has probably been answered before, but I am struggling with this problem, even after googling a million pages.
In a file named rdmt.conf
I need a single character replaced, the number in the line below
CUR_OC4J_ID=1
It will always appear after... (3 Replies)
I need a sed line that will take STDM111 and change it to STDM161
the STDM will always be constant but the 3 numbers after will be random, I just need it to always replace the middle number with 6 regardless of what the numbers are. (8 Replies)
Hi this is my first time posting ever. I'm relatively new in using AWK/SED, I've been trying many a solution. I'm trying to replace the 59th column in a file where if I encounter '' then I would like to replace it with the word NULL.
example
0 , '' , '' , 0 , 195.538462
change it to
0... (5 Replies)
Hi all,
I need to run a number of scripts which have a certain phrase on them so I have identified these by;
grep -l 100 *script | sort -u
Normally I could just run something along the lines of;
for i in `grep -l 100 *script | sort -u`; do ./${i}; done
However before I run each of... (0 Replies)
Ok,
So I have a huge file that has over 12000 lines in it.
in this file, there are 589 occurrences of the string "use five-minute-interval" spread in various areas in the file.
How can i replace the the last 250 of the occurrences of "use five-minute-interval" with "use... (10 Replies)
Hi,
I have following data in a file
5~6.14~S~N~N~0.~4565~134~6584
~6.13~H~N~N~0.~4578~0~6587
2~6.14~S~N~N~0.~4565~134~6584
~3.13~H~N~N~0.~4578~0~6587
-~6.14~S~N~N~0.~4565~134~6584
~7.13~H~N~N~0.~4578~0~6587
I want the output as
5~6.14~S~N~N~0.~4565~134~6584... (2 Replies)
my file has thousands of line but let me show what i want to achieve... here is one line from that file
cat fileName.txt
(2,'','user3002,user3003','USER_DATA_SINGLE',1,0,0,'BACKUP',2,NULL,0,450,NULL,NULL,'','2011-05-10... (13 Replies)
Hi
I have written a shell script which used sed code below
sed -i 's/'"$Pattern"'/ /g' $FileName
I want to count the length of Pattern and replace it with equal number of spaces in the FileName.
I have used $(#pattern) to get the length but could not understand how to replace... (8 Replies)
Trying to use SED to replace numbers that fall into a range but can't seem to get the logic to work and am wondering if SED will do this. I have a file with the following numbers
3
26
20
5. For the numbers that are greater than zero and less than 25, SED would add the word range after the... (7 Replies)
Discussion started by: jimmyf
7 Replies
LEARN ABOUT DEBIAN
dispatch_benchmark_f
dispatch_benchmark(3) BSD Library Functions Manual dispatch_benchmark(3)NAME
dispatch_benchmark -- Measures block execution time
SYNOPSIS
#include <dispatch/dispatch.h>
uint64_t
dispatch_benchmark(size_t count, void (^block)(void));
uint64_t
dispatch_benchmark_f(size_t count, void *context, void (*function)(void *));
DESCRIPTION
The dispatch_benchmark() function executes the given block multiple times according to the count variable and then returns the average number
of nanoseconds per execution. This function is for debugging and performance analysis work. For the best results, pass a high count value
to dispatch_benchmark(). When benchmarking concurrent code, please compare the serial version of the code against the concurrent version,
and compare the concurrent version on different classes of hardware. Please look for inflection points with various data sets and keep the
following facts in mind:
o Code bound by computational bandwidth may be inferred by proportional changes in performance as concurrency is increased.
o Code bound by memory bandwidth may be inferred by negligible changes in performance as concurrency is increased.
o Code bound by critical sections may be inferred by retrograde changes in performance as concurrency is increased.
o Intentional: locks, mutexes, and condition variables.
o Accidental: unrelated and frequently modified data on the same cache-line.
RETURN VALUE
The dispatch_benchmark() function returns the average number of nanoseconds the given block takes to execute.
SEE ALSO dispatch(3)Darwin May 1, 2009 Darwin