Dears,
I would like to count the number of "(" and ")" that occur in a file.
(syntax checking script). I tried to use "grep -c" and this works fine as long as there is only one character (for which I do a search) on a line.
Has anyone an idea how I can count the number of specific characters... (6 Replies)
I have a comma delimited file that roughly has 300 fields. Not all fields are populated.
This file is fed into another system, what I need to do is count the amount of characters in each field and give me an output similiar to this:
1 - 6,2 - 25
The first number is the field and the second... (2 Replies)
Hi All,
I have a file of the format :
idsfskjvfdznvdfjvh
ierwjfkncmvlkmc
xszkmdvnosndzjndf
weuhrndzierfncv
rndsjnsllshens
iernzkfndslkdhf
zkinewfinfvlkmvd
I wish to count the occurrences of character 'z' in the file.
I also need to find out the position of 'z' in various lines.
and... (3 Replies)
I want to list the occurence of particular characters in a line. my file looks like this
a,b,c,d
e,f,g
h,y:e,g,y s
f;g,s,w
and I want to count how many commas are in each line so the file in the end looks like this:
a,b,c,d 3
e,f,g 2
h,y:e,g,y s 3
f;g,s,w ... (2 Replies)
Hi All,
I need some help in counting the number of letters in a big file with separations.
Following is the file I have
>AB_1
MLKKPIIIGVTGGSGGGKTSVSRAILDSFPNARIAMIQHDSYYKDQSHMSFEERVKTNYDHPLAFDTDFM
IQQLKELLAGRPVDIPIYDYKKHTRSNTTFRQDPQDVIIVEGILVLEDERLRDLMDIKLFVDTDDDIRII... (6 Replies)
Ok say I wanted to count every Y in a data file.
Then set Y as my delimiter so that I can separate my file by taking all the contents that occur BEFORE the first Y and store them in a variable so that I may use this content later on in my program. Then I could do the same thing with the next Y's... (5 Replies)
I do have a big file in the following format
>A1
ATGCGG
>A2
TCATGC
>A3
-TGCTG
The number of characters will be same under each subheader and only possible characters are A,T,G,C and -
I want to count the number of A's, T's,G's, C's & -'s vertically for all the positions so that I... (5 Replies)
Hi All,
I wanted a sed/awk command to add a value/character on a particular position without disturbing the position of other characters.
I have file a.txt
OL 10031 Day Black Midi Good Value P01 P07
OL 10031 Day Black Short Good Value P01 P07
I want to get the output as... (2 Replies)
Discussion started by: rahulsk
2 Replies
LEARN ABOUT LINUX
__ppc_get_timebase_freq
__PPC_GET_TIMEBASE(3) Linux Programmer'sManual __PPC_GET_TIMEBASE(3)NAME
__ppc_get_timebase, __ppc_get_timebase_freq - get the current value
of the Time Base Register on Power architecture and its frequency.
SYNOPSIS
#include <sys/platform/ppc.h>
uint64_t __ppc_get_timebase(void)
uint64_t __ppc_get_timebase_freq(void);
DESCRIPTION
__ppc_get_timebase() reads the current value of the Time Base Register and returns its value, while __ppc_get_timebase_freq() returns the
frequency in which the Time Base Register is updated.
The Time Base Register is a 64-bit register provided by Power Architecture processors. It stores a monotonically incremented value that is
updated at a system-dependent frequency that may be different from the processor frequency.
RETURN VALUE
__ppc_get_timebase() returns a 64-bit unsigned integer that represents the current value of the Time Base Register.
__ppc_get_timebase_freq() returns a 64-bit unsigned integer that represents the frequency at which the Time Base Register is updated.
VERSIONS
GNU C Library support for __ppc_get_timebase() has been provided since version 2.16 and __ppc_get_timebase_freq() has been available since
version 2.17.
CONFORMING TO
Both functions are nonstandard GNU extensions.
EXAMPLE
The following program will calculate the time, in microseconds, spent between two calls to __ppc_get_timebase().
Program source
#include <inttypes.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/platform/ppc.h>
/* Maximum value of the Time Base Register: 2^60 - 1.
Source: POWER ISA. */
#define MAX_TB 0xFFFFFFFFFFFFFFF
int
main(void)
{
uint64_t tb1, tb2, diff;
uint64_t freq = __ppc_get_timebase_freq();
printf("Time Base frequency = %"PRIu64" Hz
", freq);
tb1 = __ppc_get_timebase();
// Do some stuff...
tb2 = __ppc_get_timebase();
if (tb2 > tb1) {
diff = tb2 - tb1;
} else {
/* Treat Time Base Register overflow. */
diff = (MAX_TB - tb2) + tb1;
}
printf("Elapsed time = %1.2f usecs
",
(double) diff * 1000000 / freq );
exit(EXIT_SUCCESS);
}
SEE ALSO time(2), usleep(3)GNU C Library 2019-03-06 __PPC_GET_TIMEBASE(3)