Hi
I have several variables called
var1, var2, var3, var4 and so on.
I would like to examine the contents of the variables using a loop
and a variable called num which equals a figure
eg
num=3
I wanted to do something like
echo $var$num
to display the contents of var3 (4 Replies)
Hi,
I have a variable v_iteration which can equal any 3 digit number eg 001 or 926
I would like to dynamically make a new variable name up using this 3 digit number
eg
v_another_variable_001=fred
v_another_variable_926=joe
The following are examples of what I have tried
... (2 Replies)
Hi all,
I have a variable with date as 20080831 . Now I want to increment it as 20080901 and so on.Is there any command for this. Please help me.
thanks
rameez (1 Reply)
Hi All,
Iam trying to increment a variable
Following is the code
#!/usr/bin/ksh
i=1;
i='expr $i+1';
echo $i;
Output:
expr $i+1
not able to understand why its happening in that way
i was expecting result as 2... if the above method is worng .. can you help how i can get... (3 Replies)
1. The problem statement, all variables and given/known data:
Variable is resetting to 0 after incrementing in while loop
My bit of scripting displays the current users logged in the machine.
Then it reads in a specific username and displays the processes for that user.
The portion that I... (3 Replies)
When I did,
echo $SHELL in cmd prompt of putty,
its displaying /bin/sh
And in my shell script.,
I hav started with.,
#!/bin/sh
and
i=1;
while ;
do
.
.
.
i=$; (9 Replies)
Hi,
want to increment a variable in a for loop like this:
for (( c=$total-1; c>=0; c-- ))
do
if ;
then
maximo=$valores
fi
done
But it gives the error:
No such file or directory
How can i do this only incrementing the c variable?
Thanks (8 Replies)
Hello folks.
I am trying to increment my variable names to match a counter that is to be used later on...
Basically, i have a for loop that lists directories (for example TEST_OS DVP_OS PROD_OS ) but this loop is not static, it may contain 3 directory once and the next run 5 directories.
I... (6 Replies)
Simple enough problem I think, I just can't seem to get it right.
The below doesn't work as intended, it's just a function defined in a much larger script:
CheckValues() {
for field in \
Group_ID \
Group_Title \
Rule_ID \
Rule_Severity \
... (2 Replies)
This is part of a larger script where I need to pass only 1 line of a file to the script, based on a variable and not a direct reference.
As part of a for loop :
# for((line=0;line<50;line++)); do
# awk ‘NR==$line' PhraseList.txt; done
... (5 Replies)
Discussion started by: Seth
5 Replies
LEARN ABOUT DEBIAN
rtf_filter
RTF_FILTER(3) rtfilter library RTF_FILTER(3)NAME
rtf_filter - filters a chunk of data
SYNOPSIS
#include <rtfilter.h>
unsigned int rtf_filter(hfilter filt, const void *x,
void *y, unsigned int ns);
DESCRIPTION
This function applies the filter referenced by filt on ns samples specified by the pointer x and writes the filtered data into the array
pointed by y. The arrays pointed by made of values whose correspond to the type specified at the creation of the filter. In addition, the
two arrays must not overlap (failing to comply will lead to undefined results).
Their number of elements have to be equal to ns multiplied by the number of channels processed (specified at the creation of the filter).
The arrays should be packed by channels with the following pattern:
|S1C1|S1C2|...|S1Ck|S2C1|S2C2|....|S2Ck|...|SnsCk|
where SiCj refers to the data value of the i-th sample and the j-th channel and k refers to the number of channel specified at the creation
of the filter.
RETURN VALUE
Returns the number of samples written in the array pointer by y. For most of the filters, this value will always be equal to ns. This is
however not the case of a downsampling filter whose the number of samples returned may vary from one call to another.
PERFORMANCE CONSIDERATION
On platforms that support SIMD instructions, rtf_filter() is implemented in 2 different versions: one normal and one using SIMD instruction
set which performs nearly 4x faster than the normal one when processing float data types. The SIMD version is automatically selected at
runtime if the following conditions are met (otherwise, the implementation falls back to the normal version):
- The input x and output y are aligned on 16 bytes boundary (128 bits)
- The sample strides (the size of the data type multiplied by the number of channel) of the input and output are multiples of 16 bytes.
The first condition is easily met by allocating x and y using memory allocation function mandating a certain alignment (for example,
posix_memalign(3) on POSIX platform).
The second condition is met if the number of channels is carefully chosen. Given the boost obtained with the SIMD version, it is often
interesting to add unused channels into the input and output (when possible) just to make the strides multiple of 16 bytes (for example
using always a multiple of 4 channels when dealing with float and real values).
SEE ALSO rtf_create_filter(3), rtf_init_filter(3)EPFL 2010 RTF_FILTER(3)