Hello experts,
I have a series issue in script that result with bad peformence and I wonder if you can assist me.
For example
I have two files:
File-New, size 15Mb.
File-Old, size 1Mb.
File-New content:
a
b
c
k
File-Old content:
d
f
a
b (0 Replies)
Hi,
I am running a BASH shell with the following script. The script works and gives me correct output but is very slow with large files. The more rows and columns (width and height) the slower as you can probably see.
How can I do what I want more efficiently? Any ideas welcome. It has been... (10 Replies)
I had written a perl script to compare two files: new and master and get the output of the first file i.e. the first file: words that are not in the master file
STRUCTURE OF THE TWO FILES
The first file is a series of names
ramesh
sushil
jonga
sudesh
lugdi
whereas the second file (could be... (4 Replies)
My script builds a lot of these array lists, then compares their sizes which solves my problem, but runs very slow. :(
set -A comboSorted -- $(
for x in ${IDs}
do
nawk -v s=$x '
BEGIN { testPattern="^" s "$" }
{
if ( $2 ~ testPattern ) {
getline;getline;
if ($1 == "IMAGE_SIZE")
print... (1 Reply)
Basically my requirement is to know the total number of free anonymous ports.
anonymous port range is 32768- 65535.
i wrote a script for that
**********************************************
for i in {32768..65535}
do
netstat -an | grep $i > /dev/null
if
... (21 Replies)
Hi
I know the basic about script and sleep processes.
However this is more tricky:
I would like to run
sh -x /sbin/dhclient-script and slow down the output of the script as a whole.
How would you do it?
I would like to delay output on the screen with 1 second for every line for the output... (3 Replies)
I have shell program as below
#!/bin/sh
echo ======= LogManageri start ==========
#This directory is getting the raw data from remote server
Raw_data=/opt/ftplogs
# This directory is ready for process the data
Processing_dir=/opt/processing_dir
# This directory is prcoessed files and... (4 Replies)
Hello,
I am showing the start of my script.
I am finding that 'xmessage' is taking about 12-15 seconds to show.
This in a terminal is very quick '/opt/vc/bin/vcgencmd get_camera'.
Is there any way to get 'camera not detected' to show faster.
Regards
#!/bin/bash
s=$(/opt/vc/bin/vcgencmd... (4 Replies)
I'm new to utilities like socat and netcat and I'm not clear if they will do what I need.
I have a "compileDeployStartWebServer.sh" script and a "StartBrowser.sh" script that are started by emacs/elisp at the same time in two different processes.
I'm using Cygwin bash on Windows 10.
My... (3 Replies)
Discussion started by: siegfried
3 Replies
LEARN ABOUT DEBIAN
h5jam
h5jam(1) General Commands Manual h5jam(1)NAME
h5jam - Add a user block to a HDF5 file
SYNOPSIS
h5jam -u user_block -i in_file.h5 [-o out_file.h5] [--clobber]
DESCRIPTION
h5jam concatenates a user_block file and an HDF5 file to create an HDF5 file with a user block. The user block can be either binary or
text. The output file is padded so that the HDF5 header begins on byte 512, 1024, etc.. (See the HDF5 File Format.)
If out_file.h5 is given, a new file is created with the user_block followed by the contents of in_file.h5. In this case, infile.h5 is
unchanged.
If out_file.h5 is not specified, the user_block is added to in_file.h5.
If in_file.h5 already has a user block, the contents of user_block will be added to the end of the existing user block, and the file
shifted to the next boundary. If --clobber is set, any existing user block will be overwritten.
EXAMPLE USAGE
Create new file, newfile.h5, with the text in file mytext.txt as the user block for the HDF5 file file.h5.
h5jam -u mytext.txt -i file.h5 -o newfile.h5
Add text in file mytext.txt to front of HDF5 dataset, file.h5.
h5jam -u mytext.txt -i file.h5
Overwrite the user block (if any) in file.h5 with the contents of mytext.txt.
h5jam -u mytext.txt -i file.h5 --clobber
RETURN VALUE
h5jam returns the size of the output file, or -1 if an error occurs.
CAVEATS
This tool copies all the data (sequentially) in the file(s) to new offsets. For a large file, this copy will take a long time.
The most efficient way to create a user block is to create the file with a user block (see H5Pset_user_block), and write the user block
data into that space from a program.
The user block is completely opaque to the HDF5 library and to the h5jam and h5unjam tools. The user block is simply read or written as a
string of bytes, which could be text or any kind of binary data. It is up to the user to know what the contents of the user block means
and how to process it.
When the user block is extracted, all the data is written to the output, including any padding or unwritten data.
This tool moves the HDF5 file through byte copies, i.e., it does not read or interpret the HDF5 objects.
SEE ALSO h5dump(1), h5ls(1), h5diff(1), h5import(1), gif2h5(1), h52gif(1), h5perf(1), h5unjam(1).
h5jam(1)