Linux command (30)ls command

ls command Function description: Lists a list of files (including subdirectories) in a specified directory, but does not display the contents of the files Usage: ls [OPTION]... [FILE]... option Effect -a Show all files, including hidden files -A Show all files except.And.. -l Show detailed properties of the file -h Converts the f ...

Posted by mcovalt on Thu, 28 May 2020 18:33:58 +0200

Script custom command

preface There are many built-in commands in the script, but sometimes we want to customize some commands, because writing a script is not as convenient as typing a command. However, there is no document for the custom command on the scrap website. There is only one sentence: you can also use the commands_ The module setting adds a custom projec ...

Posted by wolfcry044 on Tue, 19 May 2020 10:00:43 +0200

TensorFlow2.1 (Anaconda) learning note 2

Loss function, back propagation Loss function: the difference between the predicted value and the correct value.Objective: to find a set of parameters w and b to minimize the loss function.Gradient: the vector after the function calculates the partial derivative for each parameter. The downward direct ...

Posted by uramagget on Wed, 11 Mar 2020 07:33:18 +0100

Fundamentals of Computer Visual Digital Image Processing

Image Processing Basis 1. Software Installation In the computer vision course, image processing is done in the python environment, so you need to select the software that can edit the python statement. The visual interface of PyCharm is selected here. In addition, there are editors such as VScode,Su ...

Posted by wildcolour on Sun, 23 Feb 2020 04:13:37 +0100

Linux file system and LVM

1, Manage file system 1. Creating an EXT4 file system The mkfs (Make Filesystem) command is used to create a file system (format). The basic syntax format of the mkfs command is as follows: 1) mkfs application example Format the / dev/sdb1 partition as an EXT4 file system. <! -- self planning zone -- > [root@centos01 ~]# fdisk / ...

Posted by Namadoor on Mon, 17 Feb 2020 08:35:31 +0100

python draws 2091 ncov epidemic map

python draws 2091 ncov epidemic map Preparation Complete code Code interpretation In the first two phases, we have done the work of obtaining real-time tracking data of epidemic situation and building logistic model with confirmed data python obtains real-time tracking data of 2019-nCoV epidemic E ...

Posted by phpdolan on Mon, 10 Feb 2020 11:35:54 +0100

Centos configuration deep learning development environment

Catalog 1. Install the video card driver 2. Install CUDA\CUDNN 3. Install tensorflow GPU test 1. Install the video card driver Check the driver and model of the video card $ sudo rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org Add ELPepo source $ sudo rpm -Uvh http://www.elrepo.org/elrepo-release-7.0-2.el7.elrepo.noarch.rpm In ...

Posted by bsbotto on Sat, 04 Jan 2020 00:17:58 +0100

python high performance extension tool - python tutorial 2 Basic

The main contents of this chapter are as follows: Link model Python Keyword - cdef Typedef and function pointer public keyword Keyword cpdef C / C + + log to Python C / C + + calls Python ConfigParser Python to C / C + + callback Cython PXD Integration with build systems Link model Embedding python in C/C + + image.png cyth ...

Posted by _rhod on Sat, 28 Dec 2019 16:21:24 +0100

Installing tensorflow GPU under linux

Install NVIDIA drive 1. Driver download address: https://www.nvidia.cn/Download/index.aspx?lang=cn 2. Unload the original drive Ctrl+Alt+F1 sudo apt-get remove nvidia-* sudo apt-get autoremove sudo nvidia-uninstall Reset computer shutdown -r now 3. Drive installation Ctrl+Alt+F1 sudo service lightdm stop sudo sh ./filenam ...

Posted by doug007 on Sun, 17 Nov 2019 16:37:31 +0100

The simplest directory structure to understand

1. Common directories and explanations in LinuxWhere to save the 1 bin command file2 SBIN Commands that only root users can use3 boot (know it) Directory where information is saved when a Linux program starts4 Directory where dev device files existDirectory where 5 etc file configuration information and service configuration information exist6 ...

Posted by mysty on Sun, 08 Sep 2019 04:12:19 +0200