I want to check if file(s) exist even in subdirectories and perform an action. After searching here couldn't find solution that would work, but made my own solution that works fine:
Code:
if [ -f `find . | grep MLOG -m 1` ]
then
echo [MLOG]
egrep "$1|$2|$3" `find| grep MLOG`
else
echo "MLOG does not exist"
fi
That will check if 1 or more files named *MLOG* exist and executes egrep command with parameters supplied to the script.
How should that be with correct syntax?
There is as well one bug I'd like to avoid, when it finds too many files then grep will fail because of too many arguments.
Problem: I have a shell script that will be called by a Perl module that will connect to a db and delete rows. The Perl module will be called by CRON. I am using a Perl module to call a shell script because I need to get the db connection from Perl.
Here is the Perl pseudocode:
... (4 Replies)
I'm trying to grep a long ls by looking at the beginning of each filename for example:
Many files begin with yong_ho_free_2005...
Many files begin with yong_ho_2005...
I can't just use "grep yong_ho" otherwise It'll display both files.
So I'm trying to use a regex but my syntax is wrong.
... (2 Replies)
Iam a learner of UNIX. Fortunately I got this site.
I want to check the file for its existance.
if
echo " Not present"
else
echo "Present"
fi
The above code is working fine. But I also want to check for the files which are compressed.
I tried the following code and it is not... (5 Replies)
Dear all
I am still bit new in shell script area.I am writing down a shell script which I guess somewhere wrong so please kindly correct it. I would be greatful for that.
What I actually want from this shell script is that it will move all the files one by one to another server which can be... (2 Replies)
i've looked at a bunch of the date comparison threads on these boards but unfortunately not been able to figure this thing out yet. still confused by some of the way conditionals handle variables...
here is what i where i am now...
# a bunch of initializition steps are here ...... (1 Reply)
I am trying to write a simple if statement but that driving me crazy:eek: with syntactical erorrs.
This is what I managed to come up
#!/bin/ksh
USERNAME=`whoami`
if ;then
echo " you have logged in as report user"
elif ; then
echo " you have logged in as extract user"
else " I dont... (3 Replies)
I tried with sed command to create a space between namespace from the XML file. I used this syntax. Can someone tell me is this syntax is vaild?
/usr/xpg4/bin/sed -e 's/<\/^.*><^.:Errort>/<\/^.*> <^.:Errort>/g' test > test2
I dint find any changes or any space being created between... (10 Replies)
I have a file name :
var=UsrAccChgRpt
I want to make them upper case.
Tried:
$var | tr
Error:
tr: Invalid combination of options and Strings.
Usage: tr | -ds | -s | -ds | -s ] String1 String2
tr { -d | -s | -d | -s } String1
Could you please help. I am using AIX... (2 Replies)
Hello,
Using Bash on Mac OS X 10.7.5 (Lion). I downloaded a GrowlSafari plugin for Webkit from its GitHub page GitHub - uasi/growl-safari-bridge: GrowlSafariBridge enables arbitrary javascript (including Safari Extensions) to notify via Growl.. In the description it says that after installing for... (0 Replies)
I need to find all files and folders containing keyword from the topmost directory deep down the tree but omitting all references to keyword in web-search logs and entries, i.e. excluding search and browsing history made using web-browser1, web-browser2, web-browser3, (bypassing all entries of the... (8 Replies)
Discussion started by: scrutinizerix
8 Replies
LEARN ABOUT CENTOS
sgels.f
sgels.f(3) LAPACK sgels.f(3)NAME
sgels.f -
SYNOPSIS
Functions/Subroutines
subroutine sgels (TRANS, M, N, NRHS, A, LDA, B, LDB, WORK, LWORK, INFO)
SGELS solves overdetermined or underdetermined systems for GE matrices
Function/Subroutine Documentation
subroutine sgels (characterTRANS, integerM, integerN, integerNRHS, real, dimension( lda, * )A, integerLDA, real, dimension( ldb, * )B,
integerLDB, real, dimension( * )WORK, integerLWORK, integerINFO)
SGELS solves overdetermined or underdetermined systems for GE matrices
Purpose:
SGELS solves overdetermined or underdetermined real linear systems
involving an M-by-N matrix A, or its transpose, using a QR or LQ
factorization of A. It is assumed that A has full rank.
The following options are provided:
1. If TRANS = 'N' and m >= n: find the least squares solution of
an overdetermined system, i.e., solve the least squares problem
minimize || B - A*X ||.
2. If TRANS = 'N' and m < n: find the minimum norm solution of
an underdetermined system A * X = B.
3. If TRANS = 'T' and m >= n: find the minimum norm solution of
an undetermined system A**T * X = B.
4. If TRANS = 'T' and m < n: find the least squares solution of
an overdetermined system, i.e., solve the least squares problem
minimize || B - A**T * X ||.
Several right hand side vectors b and solution vectors x can be
handled in a single call; they are stored as the columns of the
M-by-NRHS right hand side matrix B and the N-by-NRHS solution
matrix X.
Parameters:
TRANS
TRANS is CHARACTER*1
= 'N': the linear system involves A;
= 'T': the linear system involves A**T.
M
M is INTEGER
The number of rows of the matrix A. M >= 0.
N
N is INTEGER
The number of columns of the matrix A. N >= 0.
NRHS
NRHS is INTEGER
The number of right hand sides, i.e., the number of
columns of the matrices B and X. NRHS >=0.
A
A is REAL array, dimension (LDA,N)
On entry, the M-by-N matrix A.
On exit,
if M >= N, A is overwritten by details of its QR
factorization as returned by SGEQRF;
if M < N, A is overwritten by details of its LQ
factorization as returned by SGELQF.
LDA
LDA is INTEGER
The leading dimension of the array A. LDA >= max(1,M).
B
B is REAL array, dimension (LDB,NRHS)
On entry, the matrix B of right hand side vectors, stored
columnwise; B is M-by-NRHS if TRANS = 'N', or N-by-NRHS
if TRANS = 'T'.
On exit, if INFO = 0, B is overwritten by the solution
vectors, stored columnwise:
if TRANS = 'N' and m >= n, rows 1 to n of B contain the least
squares solution vectors; the residual sum of squares for the
solution in each column is given by the sum of squares of
elements N+1 to M in that column;
if TRANS = 'N' and m < n, rows 1 to N of B contain the
minimum norm solution vectors;
if TRANS = 'T' and m >= n, rows 1 to M of B contain the
minimum norm solution vectors;
if TRANS = 'T' and m < n, rows 1 to M of B contain the
least squares solution vectors; the residual sum of squares
for the solution in each column is given by the sum of
squares of elements M+1 to N in that column.
LDB
LDB is INTEGER
The leading dimension of the array B. LDB >= MAX(1,M,N).
WORK
WORK is REAL array, dimension (MAX(1,LWORK))
On exit, if INFO = 0, WORK(1) returns the optimal LWORK.
LWORK
LWORK is INTEGER
The dimension of the array WORK.
LWORK >= max( 1, MN + max( MN, NRHS ) ).
For optimal performance,
LWORK >= max( 1, MN + max( MN, NRHS )*NB ).
where MN = min(M,N) and NB is the optimum block size.
If LWORK = -1, then a workspace query is assumed; the routine
only calculates the optimal size of the WORK array, returns
this value as the first entry of the WORK array, and no error
message related to LWORK is issued by XERBLA.
INFO
INFO is INTEGER
= 0: successful exit
< 0: if INFO = -i, the i-th argument had an illegal value
> 0: if INFO = i, the i-th diagonal element of the
triangular factor of A is zero, so that A does not have
full rank; the least squares solution could not be
computed.
Author:
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Date:
November 2011
Definition at line 183 of file sgels.f.
Author
Generated automatically by Doxygen for LAPACK from the source code.
Version 3.4.2 Tue Sep 25 2012 sgels.f(3)
10-06-2010
