In a shell script, how I can achieve substitution of shell script var to a regular
expression, as shown below.
var=`head -1 file1`
awk '$0!~/$var/ {print $0}' file1 > file2
In the case above $var value literally considered for non-exists criteria. (3 Replies)
Hello!
I've got txt-file containing lots of data in sentences like this:
;;BA;00:00:03:00;COM;CLOQUET-LAFOLLYE;SIMON;
but sometime more than on in a line like this:
;;BA;00:00:03:00;COM;CLOQUET-LAFOLLYE;SIMON;;;BA;00:00:03:00;REA;RTL9;;;;BAC;:00;TIT;SEMAINE SPECIALE ~SSLOGAN~T DVD;;
... (3 Replies)
Hi there!
I'm trying to validate a simple 6 digits number with reg expr. I ONLY want 6 digits so when i type 7 digits the script should no validate the number.
I've write this code:
#!/usr/bin/perl
while(<STDIN>){
if($_=~/\d{6}/){
print "Bingo!\n";
... (2 Replies)
Hello,
I am new in perl and in regular exprecion; so I am looking for help (or an experienced advise.)
The target is a triming spaces from a string: i.e., remove spases from begining and from end of a string.
One of main point of a searched solution is performance: for current task it is... (2 Replies)
Hi All,
I am in need of help. I want to match a value of each row in “file 1” with the value of first row in “file 2” and print out only the columns that match. How can I do it in awk? Any help is greatly appreciated.
for example, I have two files:
Cat “File 1”
ID
3
8
15
Cat “File... (2 Replies)
Hi All,
I need your input on how to mask out / ignore a string that does not match a working regular expression (continually refining) pattern in Java. Below is the code snippet which is picking up all the lines with the correct regular expression string except one known so far:
public... (0 Replies)
Hi,
I have a file filled with search strings which have a blank in between and look like this:
S. g. Ehr.
o. Jg.
v. d. Chijs
g. Ehr.
Now i would like to search for the strings and it also shall return the next column after the match.
awk -v FILE="search_strings.txt" 'BEGIN {... (10 Replies)
Hi,
My input files is like this
axis1 0 1 10
axis2 0 1 5
axis1 1 2 -4
axis2 2 3 -3
axis1 3 4 5
axis2 3 4 -1
axis1 4 5 -6
axis2 4 5 1
Now, these are my following tasks
1. Print a first column for every two rows that has the same value followed by a string.
2. Match on the... (3 Replies)
Discussion started by: jacobs.smith
3 Replies
LEARN ABOUT REDHAT
slagtm
SLAGTM(l) ) SLAGTM(l)
NAME
SLAGTM - perform a matrix-vector product of the form B := alpha * A * X + beta * B where A is a tridiagonal matrix of order N, B and X
are N by NRHS matrices, and alpha and beta are real scalars, each of which may be 0., 1., or -1
SYNOPSIS
SUBROUTINE SLAGTM( TRANS, N, NRHS, ALPHA, DL, D, DU, X, LDX, BETA, B, LDB )
CHARACTER TRANS
INTEGER LDB, LDX, N, NRHS
REAL ALPHA, BETA
REAL B( LDB, * ), D( * ), DL( * ), DU( * ), X( LDX, * )
PURPOSE
SLAGTM performs a matrix-vector product of the form B := alpha * A * X + beta * B where A is a tridiagonal matrix of order N, B and X are N
by NRHS matrices, and alpha and beta are real scalars, each of which may be 0., 1., or -1.
ARGUMENTS
TRANS (input) CHARACTER
Specifies the operation applied to A. = 'N': No transpose, B := alpha * A * X + beta * B
= 'T': Transpose, B := alpha * A'* X + beta * B
= 'C': Conjugate transpose = Transpose
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 matrices X and B.
ALPHA (input) REAL
The scalar alpha. ALPHA must be 0., 1., or -1.; otherwise, it is assumed to be 0.
DL (input) REAL array, dimension (N-1)
The (n-1) sub-diagonal elements of T.
D (input) REAL array, dimension (N)
The diagonal elements of T.
DU (input) REAL array, dimension (N-1)
The (n-1) super-diagonal elements of T.
X (input) REAL array, dimension (LDX,NRHS)
The N by NRHS matrix X. LDX (input) INTEGER The leading dimension of the array X. LDX >= max(N,1).
BETA (input) REAL
The scalar beta. BETA must be 0., 1., or -1.; otherwise, it is assumed to be 1.
B (input/output) REAL array, dimension (LDB,NRHS)
On entry, the N by NRHS matrix B. On exit, B is overwritten by the matrix expression B := alpha * A * X + beta * B.
LDB (input) INTEGER
The leading dimension of the array B. LDB >= max(N,1).
LAPACK version 3.0 15 June 2000 SLAGTM(l)