02-26-2010
@linuxpenguin
In unix there is no fixed solution to a problem. I love to see an alternative different and valid solution.
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1. UNIX for Dummies Questions & Answers
Hi to everyone!!. Here's my stupid question of the day.
When I have to rename a file I use "mv filename newfilename".
But what about renaming multiple files, for example if I want to add the prefix "old" to several image files (in fact it's what I wanted to do..).
Thanks in advance.... :D (6 Replies)
Discussion started by: piltrafa
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2. Shell Programming and Scripting
Can someone please tell me how I can rename a bunch of files at a time. I hava a directory that has 700+ files that are named
*.xyz and I would like to rename them to *.abc . How can I do that with a simple command ?
mv *.xyz *.abc did not work.
Thanks in advance (4 Replies)
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3. UNIX for Dummies Questions & Answers
Hi All my dear friends
I had multiple files in my directory with .pcv and .sqv extn
I want to rename all .pcv files with .pc extn and all .sqv files with .sql extn
Please help me out.:eek::mad::rolleyes:
e.g.
/trimsbld/users/dhirens/scripts/newfolder==>ll -rt
total 2856
-rwxr-xr-x 1... (2 Replies)
Discussion started by: dhiren_shah
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4. Shell Programming and Scripting
I have a bunch of files txt1.csv--2008 thru to txt3.csv--2008.
If i wanted to rename these files all at the same time to txt*.csv-2008 what would be the best way to do it...
Just need to get rid of the extra - in each file name.. not all files are going to be called txt*.csv--2008. Just... (6 Replies)
Discussion started by: Jazmania
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5. Shell Programming and Scripting
Hi,
I have several hundred files I need to rename, and I'm would rather not hit F2 for each file individually to rename them.
Example of file:
large1961.jpg
What I need the file to be renamed as:
1961.jpg
I don't know what type of command I can execute within a shell script that would... (7 Replies)
Discussion started by: jayell
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6. UNIX for Dummies Questions & Answers
I have multiple gif files in a directory with different names.
How can i rename them to have this result:
file01.gif
file02.gif
file03.gif
.
.
.
file0500.gif
Thanks for your help. (3 Replies)
Discussion started by: netx
3 Replies
7. UNIX for Dummies Questions & Answers
Hi,
Can we rename multiples files using find or awk utility?
Now I am doing it using for loop and getting the file name and in side the loop using the mv command.
Like ine need t rename all txt files to doc file. For example
a1.txt => a1.doc
a2.txt => a2.doc
a3.txt => a3.doc
myfile.txt... (2 Replies)
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8. Shell Programming and Scripting
I have 34 file in a directory that all have different names, however, they do have 1 pattern in commmon. They all have "-10-11-2010" date format in the name. I want to replace the date in the file name with a supplied date or maybe even the system date. I am sure I will be using awk or sed to... (9 Replies)
Discussion started by: Harleyrci
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9. UNIX for Dummies Questions & Answers
Hello, I have multiple files that I want to change the names to. Let's say for example that I want to rename all the files in the left column to the names in the right column:
What would be the easiest way to go about doing this? Thanks. (1 Reply)
Discussion started by: Scatterbrain26
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10. Shell Programming and Scripting
Hi,
In sftp script to get files, I have to rename all the files which I am picking. Rename command does not work here. Is there any way to do this?
I am using #!/bin/ksh
For eg: sftp user@host <<EOF
cd /path
get *.txt
rename *.txt *.txt.done
... (7 Replies)
Discussion started by: jhilmil
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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)