Linux file and directory management command base
1. Command basis
1.1 command operation syntax
Command [parameter] [file]
Parameter, optional
Documents, optional
2. Basic command
2.1. View the current working directory
pwd
print name of current/workin directory
Print name or working directory
[root@oldboyedu ~]# pwd
/root
[root@oldboyedu ~]# cd /opt/
[root@oldboyedu /opt]# pwd ...
Posted by wama_tech on Sun, 05 Apr 2020 03:28:23 -0700
mongoDBmongoDB Replica Set Actual
mongoDB Replica Set Actual Warfare
background
Features of a mongoDB single server:
- Risk of data loss
- Single server cannot be highly available
Features of the mongoDB replica set:
-High Availability Architecture to Prevent Data Loss
- Keep multiple replicas synchronized and consistent
- The mongodb replica set switches automatically when ...
Posted by Cheap Commercial on Sat, 04 Apr 2020 19:15:46 -0700
Introduction to the varnish foundation of WEB caching system
Previously, we talked about the cache control mechanism in http protocol and the introduction of varnish architecture components. Please refer to https://www.cnblogs.com/qiuhom-1874/p/12620538.html Today, let's talk about how to configure and use varnish;
We mentioned earlier that there are two configuration files in varnish, one is / etc/varni ...
Posted by zarathu on Sat, 04 Apr 2020 17:38:21 -0700
033 remote execution command
Execute command on serverIt seems that there is no module to execute the command before. Now it is added
import subprocess
obj = subprocess.Popen('dir',shell=True,stdout=subprocess.PIPE)
#Get an object. The command is in front, shell The script can be executed, stdout Set a process pipeline. There are actually two processes, one is the main p ...
Posted by rdog157h on Sat, 04 Apr 2020 15:55:01 -0700
python full stack development - Day5 collection
python full stack development - Day5 collection
1, First of all, learn the set according to the following points
#1: Basic use
1. Purpose
2. Definition method
3. Common operation + built-in method
#2: Summary of this type
1. Save a value or multiple values. Only one value can save multiple values. What types of values can be
2. Order or disor ...
Posted by ericbangug on Sat, 04 Apr 2020 10:31:50 -0700
Self-timer Tutorial 52 Python_adb Run Shell Script
Android, as a Linux terminal, must have run Shell scripts that support the.sh suffix.
Sometimes the test environment prepares or intercepts complex logs for a long time, and so on, the development will give you some Shell scripts.
Benefits of Shell script execution:
Quick and efficient, Shell scripts are supported on Linux terminals.
Since th ...
Posted by timvw on Sat, 04 Apr 2020 09:51:50 -0700
Create Maven private warehouse with Nexus
Go to http://www.sonatype.org/nexus/go/
Download nexus-2.14.5-02-bundle.tar.gz
Create the nexus directory in the server and download the Nexus (upload it to the oss first and then download it in the form of wget)
[root@iZm5e0c5bxd15k4yfdiirsZ opt]# mkdir nexus
[root@iZm5e0c5bxd15k4yfdiirsZ opt]# ls
apache-tomcat-8.0.30 jdk1.8.0_11 nexus r ...
Posted by rupertbj on Sat, 04 Apr 2020 09:42:49 -0700
DMAv1alpha2 New Version: Balancing Standards and Scalability
Author | Sun Jianbo (Tianyuan) Aliyun Technical Expert
Read about: DMASpec has been iterating for nearly three months. v1alpha2 Version finally released!The new version has become more Kubernetes-friendly as a whole, balancing standards and scalability to a large extent and supporting CRD better, on the basis of adherence to platform-independen ...
Posted by FMB on Sat, 04 Apr 2020 06:25:48 -0700
Linux Chromium source compilation
LInux Chromium source compilation
Under LInux, Chromium is compiled in gn+ninja mode. The older version of gyp has been discarded, and by default (the is Pang flag bit is true), the clang compiler is used.
GN generates the build.ninja file through the GN file in the Chromium source code under the compiled directory (s ...
Posted by mac25 on Sat, 04 Apr 2020 03:29:53 -0700
The way of configuration management under Android: apk signature correlation
How to generate apk signature key file
# Build key method:
sub='/C=CN/ST=ShangHai/L=ShangHai/O=example/OU=CM/CN=example/emailAddress=buildfarm@example.com'
for key in platform shared media testkey;do
./development/tools/make_key $key "$sub"
done
How to re sign an apk
The command is as follows:
java -Xmx2048m -ja ...
Posted by SmokyBarnable on Fri, 03 Apr 2020 22:53:48 -0700