Hi,
I'm new to unix and i am kind of familiar with the basic commands.
can anyone suggest some good books especially for AWK scripting and SHELL scripting
thanks,
Hari (2 Replies)
I have a text file in which the text has been divided into paragraphs (two line breaks or tab marks a new paragraph) and I want to make a script which output would delete line breaks within the paragraph and the different paragraphs would be separated by two line breaks.
So, if my input file... (14 Replies)
Hi,
I am trying to understand what is happening here, new to scripting: I have a couple of these, but if I knew what was going on in one I can figure out the rest:
awk '/rpc-100083/ { $2 = "enable -r" }
$3 ~ /.NOS99dtlogin/ { $t = $2; $2 = $3; $3 = $t }
{ print }' /var/svc/profile/upgrade... (2 Replies)
Hi
I have 2 files of large size( 10 Miilions) , i want to join 2 files based on some condition .
for this taking lot of time and 100 cpu .i want to iterate the based on some value (like 1 lakh)
I put the 2 files in the associative arrays . if the array limit reaches the 1 lach join the with... (2 Replies)
Hi Experts,
I am adding a column of numbers with awk , however not getting correct output:
# awk '{sum+=$1} END {print sum}' datafile
2.15291e+06
How can I getthe output like : 2152910
Thank you..
# awk '{sum+=$1} END {print sum}' datafile
2.15079e+06 (3 Replies)
Hi, i am newbie to this site and hope to learn but problem is s but need help urgently.
Plz pm me if you are good at this.
Help will be appreciated. (11 Replies)
hi all,
I am working on awk scripting.I have created two awk files and now have a requirement of replacing the contents of first file with some contents of second file.
Please find below the two files created.File1 has 3 records and File2 has 4 records.
cat File1
111,0165,CB21031251,0165,... (3 Replies)
Hi
I am beginner of shell/AWK scripting , can you please help me in select particular column and column between two pattern from a multiple column file.
file1.txt
number status date1 date2 description category ... (7 Replies)
Hey guys,
I want to get all the columns in this input file tab-delimited, i need to get the column send them to a variable. From there i could print them in shuffle and pick and select columns i want.
Here is the input sample
2013/08/05 06:50:38:067 MINOR SiteScope ... (9 Replies)
I am trying to write a shell script that will add a date to and awk command from the command prompt.
here is the line I am having difficulties.
zgrep -i playback $dir/$1-*-errors.out.gz |cut -d '|' -f 1,11,12,15 | awk -v start=${start} -v end=${end} -F '|' '{$1>=start && $1 <=end} {print $2... (7 Replies)
Discussion started by: infinity0880
7 Replies
LEARN ABOUT REDHAT
sgtsv
SGTSV(l) ) SGTSV(l)
NAME
SGTSV - solve the equation A*X = B,
SYNOPSIS
SUBROUTINE SGTSV( N, NRHS, DL, D, DU, B, LDB, INFO )
INTEGER INFO, LDB, N, NRHS
REAL B( LDB, * ), D( * ), DL( * ), DU( * )
PURPOSE
SGTSV solves the equation A*X = B, where A is an n by n tridiagonal matrix, by Gaussian elimination with partial pivoting.
Note that the equation A'*X = B may be solved by interchanging the order of the arguments DU and DL.
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.
DL (input/output) REAL array, dimension (N-1)
On entry, DL must contain the (n-1) sub-diagonal elements of A.
On exit, DL is overwritten by the (n-2) elements of the second super-diagonal of the upper triangular matrix U from the LU factor-
ization of A, in DL(1), ..., DL(n-2).
D (input/output) REAL array, dimension (N)
On entry, D must contain the diagonal elements of A.
On exit, D is overwritten by the n diagonal elements of U.
DU (input/output) REAL array, dimension (N-1)
On entry, DU must contain the (n-1) super-diagonal elements of A.
On exit, DU is overwritten by the (n-1) elements of the first super-diagonal of U.
B (input/output) REAL array, dimension (LDB,NRHS)
On entry, the N by NRHS matrix of right hand side matrix B. On exit, if INFO = 0, the N by NRHS solution matrix X.
LDB (input) INTEGER
The leading dimension of the array B. LDB >= max(1,N).
INFO (output) INTEGER
= 0: successful exit
< 0: if INFO = -i, the i-th argument had an illegal value
> 0: if INFO = i, U(i,i) is exactly zero, and the solution has not been computed. The factorization has not been completed unless
i = N.
LAPACK version 3.0 15 June 2000 SGTSV(l)