Running on a file:
Line1: Does it contain "pattern", yes print a (here a will be empty), no continue
a=Line1
Line2: Does it contain "pattern", yes print a (her a contial line1), no continue
a=Line2
Line3: Does it contain "pattern", yes print a (her a contial line2), no continue
a=Line3
I know this has been asked before but I just can't parse the syntax as explained. I have a set of files that has user information spread out over two lines that I wish to merge into one:
User1NameLast User1NameFirst User1Address
E-Mail:User1email
User2NameLast User2NameFirst User2Address... (11 Replies)
Need help creating a script that does the following:
Sort a file
Compare the previous line "last field" with current line "last field"
If they are the same, print output to a file
If they are different print output to a new file
The script should keep creating new files if the previous... (5 Replies)
Hello,
I've written a ksh awk script to ping multiple servers and write the results to a file. That part is working ok. I then want to extract the names of only the server which are available. This is indicated by '1 packets received'. The server name actually appears above that line so I found... (4 Replies)
Hi guys,
I have found your forum super useful. However, right now I am stuck on a seemingly "simple" thing in AWK. I have two columns of data, the first column in Age (in million years) and the second column is Convergence Rate (in mm/yr).
I am trying to process my data so I can use it to... (2 Replies)
I want to remove commands having no output. In below text file.
bash-3.2$ cat abc_do_it.txt
grpg10so>show trunk group all status
grpg11so>show trunk group all status
grpg12so>show trunk group all status
GCPKNYAIGT73IMO 1440 1345 0 0 94 0 0 INSERVICE 93% 0%... (4 Replies)
Hi all,
From a while loop I am reading a sorted file where I want to print only the lines that have $1 match and $2 only when the difference from $2 from the previous line is > 30.
Input would be like ...
AN237 010 193019 0502 1 CSU Amoxycillin
AN237 080 ... (2 Replies)
I have a very long line with certain patters embedded in there. I need to be able to read that line, and when it encounters that pattern, create a new line.
I want the pattern to be the beginning of the new line.
I thought sed or awk could do this, but everything I try in sed gives me a "sed... (2 Replies)
Hello Help,
2356798 7689867 999 000
123678 20385907 9797 666
17978975 87468976 968978 98798
I am trying to have out put which actually look for the third column value of 9797 and then it insert line there after with first, second column value exactly as the previous line and replace the third... (3 Replies)
Discussion started by: Indra2011
3 Replies
LEARN ABOUT REDHAT
dptrfs
DPTRFS(l) ) DPTRFS(l)
NAME
DPTRFS - improve the computed solution to a system of linear equations when the coefficient matrix is symmetric positive definite and
tridiagonal, and provides error bounds and backward error estimates for the solution
SYNOPSIS
SUBROUTINE DPTRFS( N, NRHS, D, E, DF, EF, B, LDB, X, LDX, FERR, BERR, WORK, INFO )
INTEGER INFO, LDB, LDX, N, NRHS
DOUBLE PRECISION B( LDB, * ), BERR( * ), D( * ), DF( * ), E( * ), EF( * ), FERR( * ), WORK( * ), X( LDX, * )
PURPOSE
DPTRFS improves the computed solution to a system of linear equations when the coefficient matrix is symmetric positive definite and tridi-
agonal, and provides error bounds and backward error estimates for the solution.
ARGUMENTS
N (input) INTEGER
The order of the matrix A. N >= 0.
NRHS (input) INTEGER
The number of right hand sides, i.e., the number of columns of the matrix B. NRHS >= 0.
D (input) DOUBLE PRECISION array, dimension (N)
The n diagonal elements of the tridiagonal matrix A.
E (input) DOUBLE PRECISION array, dimension (N-1)
The (n-1) subdiagonal elements of the tridiagonal matrix A.
DF (input) DOUBLE PRECISION array, dimension (N)
The n diagonal elements of the diagonal matrix D from the factorization computed by DPTTRF.
EF (input) DOUBLE PRECISION array, dimension (N-1)
The (n-1) subdiagonal elements of the unit bidiagonal factor L from the factorization computed by DPTTRF.
B (input) DOUBLE PRECISION array, dimension (LDB,NRHS)
The right hand side matrix B.
LDB (input) INTEGER
The leading dimension of the array B. LDB >= max(1,N).
X (input/output) DOUBLE PRECISION array, dimension (LDX,NRHS)
On entry, the solution matrix X, as computed by DPTTRS. On exit, the improved solution matrix X.
LDX (input) INTEGER
The leading dimension of the array X. LDX >= max(1,N).
FERR (output) DOUBLE PRECISION array, dimension (NRHS)
The forward error bound for each solution vector X(j) (the j-th column of the solution matrix X). If XTRUE is the true solution
corresponding to X(j), FERR(j) is an estimated upper bound for the magnitude of the largest element in (X(j) - XTRUE) divided by
the magnitude of the largest element in X(j).
BERR (output) DOUBLE PRECISION array, dimension (NRHS)
The componentwise relative backward error of each solution vector X(j) (i.e., the smallest relative change in any element of A or B
that makes X(j) an exact solution).
WORK (workspace) DOUBLE PRECISION array, dimension (2*N)
INFO (output) INTEGER
= 0: successful exit
< 0: if INFO = -i, the i-th argument had an illegal value
PARAMETERS
ITMAX is the maximum number of steps of iterative refinement.
LAPACK version 3.0 15 June 2000 DPTRFS(l)