A really dumb question as I've wasted far too long trying to get this to work.... (on RH bash)
I have an array:
in my code I calculate the value of the variable to output and if I echo it, I get m0 or v0, but if I try and print the variable, I either get 3 as an output, or bad variable substitution, or no output.
Thanks in advance - and apologies for the very basic question.
I am using an array (clmlist01). I have 61 of these and have 4 or more references to each one in a block of code that I do not want to have to hardcode. With that being said, I am creating a varible and going through a for loop to create the actually name of each array. The arrays would end up... (3 Replies)
Hello,
i have another sed question.. I'm trying to do variable substition with sed and i'm running into a problem.
my var1 is a string constructed like this:
filename1 filerev1 filepath1
my var2 is another string constructed like this:
filename2 filerev2 filepath2
when i do... (2 Replies)
Hello,
Please tell me if there is a better way to get the number of elements from an array that is passed to a function.
This is what works on Solaris 8 (ksh) but it looks odd:
loop_array() {
array_name=$2
b1='\${\#'
b2='}'
nr_elements=`eval echo... (6 Replies)
I've created a series of arrays named as follows:
row1
row2
row3
.
.
.
row10
Each has 4 elements.
I'm trying to echo the array elements out in a for loop. Here's what I have:
for ((i=1;i<=10;i++))
do
for ((j=1;j<=4;j++))
do
eval out=${row`echo $i`}
echo -n $out (3 Replies)
Hi ,
I have a variable as follows,
Temp=`cat ABC.txt | cut -c5-`
This will yeild a part of the date. say , 200912.
I would like to substitute this variable's value in a filename.
eg: File200912F.zip
when i say File$TempF.zip , it is not substituting.
Any help ?
Thanks in... (2 Replies)
Hi.
I´ve a script that should substitude the 8th line in a file called xxx.num6.
The "xxx" is set by an array filled with this command:
j=0
for Par in *.sys ; do
Par=`echo $Par | sed 's/\(.*\).sys/\1/'` ;
Par2="$Par" ; echo "${Par2}"
j=$((j + 1));
done
Now i try... (0 Replies)
For example I have variable like below
echo $OUTPUT
/some/path/`uname -n`
when I try to use the variable OUTPUT like below
cd $OUTPUT or cd ${OUTPUT}
I am getting bad substituion error message
$ cd $OUTPUT
ksh: cd: bad substitution
$ cd ${OUTPUT}
ksh: cd: bad substitution
... (1 Reply)
Is there a way to print multiple array elements without iterating through the array using bash?
Can you do something like...
echo ${array}and get all those separate elements from the array? (2 Replies)
Hello all,
I have following piece of code which is working fine if executed standalone -
date=$1
set -A max_month 0 31 28 31 30 31 30 31 31 30 31 30 31
eval $(echo $date|sed 's!\(....\)\(..\)\(..\)!year=\1;month=\2;day=\3!')
(( year4=year%4 ))
(( year100=year%100 ))
(( year400=year%400 ))... (7 Replies)
Discussion started by: ektubbe
7 Replies
LEARN ABOUT DEBIAN
slagts
slagts.f(3) LAPACK slagts.f(3)NAME
slagts.f -
SYNOPSIS
Functions/Subroutines
subroutine slagts (JOB, N, A, B, C, D, IN, Y, TOL, INFO)
SLAGTS
Function/Subroutine Documentation
subroutine slagts (integerJOB, integerN, real, dimension( * )A, real, dimension( * )B, real, dimension( * )C, real, dimension( * )D, integer,
dimension( * )IN, real, dimension( * )Y, realTOL, integerINFO)
SLAGTS
Purpose:
SLAGTS may be used to solve one of the systems of equations
(T - lambda*I)*x = y or (T - lambda*I)**T*x = y,
where T is an n by n tridiagonal matrix, for x, following the
factorization of (T - lambda*I) as
(T - lambda*I) = P*L*U ,
by routine SLAGTF. The choice of equation to be solved is
controlled by the argument JOB, and in each case there is an option
to perturb zero or very small diagonal elements of U, this option
being intended for use in applications such as inverse iteration.
Parameters:
JOB
JOB is INTEGER
Specifies the job to be performed by SLAGTS as follows:
= 1: The equations (T - lambda*I)x = y are to be solved,
but diagonal elements of U are not to be perturbed.
= -1: The equations (T - lambda*I)x = y are to be solved
and, if overflow would otherwise occur, the diagonal
elements of U are to be perturbed. See argument TOL
below.
= 2: The equations (T - lambda*I)**Tx = y are to be solved,
but diagonal elements of U are not to be perturbed.
= -2: The equations (T - lambda*I)**Tx = y are to be solved
and, if overflow would otherwise occur, the diagonal
elements of U are to be perturbed. See argument TOL
below.
N
N is INTEGER
The order of the matrix T.
A
A is REAL array, dimension (N)
On entry, A must contain the diagonal elements of U as
returned from SLAGTF.
B
B is REAL array, dimension (N-1)
On entry, B must contain the first super-diagonal elements of
U as returned from SLAGTF.
C
C is REAL array, dimension (N-1)
On entry, C must contain the sub-diagonal elements of L as
returned from SLAGTF.
D
D is REAL array, dimension (N-2)
On entry, D must contain the second super-diagonal elements
of U as returned from SLAGTF.
IN
IN is INTEGER array, dimension (N)
On entry, IN must contain details of the matrix P as returned
from SLAGTF.
Y
Y is REAL array, dimension (N)
On entry, the right hand side vector y.
On exit, Y is overwritten by the solution vector x.
TOL
TOL is REAL
On entry, with JOB .lt. 0, TOL should be the minimum
perturbation to be made to very small diagonal elements of U.
TOL should normally be chosen as about eps*norm(U), where eps
is the relative machine precision, but if TOL is supplied as
non-positive, then it is reset to eps*max( abs( u(i,j) ) ).
If JOB .gt. 0 then TOL is not referenced.
On exit, TOL is changed as described above, only if TOL is
non-positive on entry. Otherwise TOL is unchanged.
INFO
INFO is INTEGER
= 0 : successful exit
.lt. 0: if INFO = -i, the i-th argument had an illegal value
.gt. 0: overflow would occur when computing the INFO(th)
element of the solution vector x. This can only occur
when JOB is supplied as positive and either means
that a diagonal element of U is very small, or that
the elements of the right-hand side vector y are very
large.
Author:
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Date:
November 2011
Definition at line 162 of file slagts.f.
Author
Generated automatically by Doxygen for LAPACK from the source code.
Version 3.4.1 Sun May 26 2013 slagts.f(3)