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ls #List all files starting with a and o [root@sh02-hap-bss-prod-consul03 ~]# ls anaconda-ks.cfg nss-pam-ldapd-0.9.8-1.gf.el7.x86_64.rpm openldap-clients-2.4.44-21.el7_6.x86_64.rpm original-ks.cfg tools [root@sh02-hap-bss-prod-consul03 ~]# ls [ao]* anaconda-ks.cfg openldap-clients-2.4.44-21.el7_6.x86_64.rpm original-ks.cfg #[0-9] for a ...

1. Overview of LVM The full name of LVM, Logical Volume Manager, is a flexible management mechanism for disk partitions provided by Linux.To understand LVM, you first need to start with a problem that Linux users often encounter, which is, "How should I properly evaluate the size of different partitions to appropriately allocate hard disk ...

The unit test framework has been used to write test scripts. If you want to add the function of exception screenshot and automatic rerun, you have implemented it on junit in java before The idea is to judge whether the result fails in tearDown, save the screenshot, or rewrite the rule, and try the place where it is executed I ...

In order to facilitate development, we usually use SNAPSHOT version. After stage development, we need to change SNAPSHOT to release version (such as 1.0.0.SNAPSHOT - "1.0.0) to prevent online environment from being damaged. The manual step is to delete the SNAPSHOT, then tag the code (for backup), then mvn deploy uploads the release versio ...

One background Recently, we are using spring boot to develop project A, which introduces module B developed by small partners. It starts service locally and runs well. When it is deployed to the server, an error will be reported as soon as it runs: Caused by: java.lang.ClassNotFoundException. Note: there are many reasons for this error, such as ...

This note is excerpted from: https://www.cnblogs.com/liqingwen/p/5816051.html Record the learning process for future reference. Many file system operations are essentially queries, so LINQ is a good way to use them. I. query files with specified attributes or names This example shows how to find all files in the specified directory tree with th ...

Eureka is Netflix's open source service registration and discovery component. Common Service Registration and Discovery Components Zookeeper,Eureka Eureka Service Registration and Discovery Principles Services are registered with the registry Get additional registry service configurations Create Eureka Server Create a project using Spring In ...

1: rbd introduction A block is a sequence of bytes (for example, a 512 byte block of data). Block based storage interface is the most commonly used method to store data using rotating media (such as hard disk, CD, floppy disk or even traditional 9-track tape). The ubiquitous block device interface makes the virtual block device an ideal candi ...

If you like, order a compliment! GitHub Project JavaHouse Synchronized recording 1 Introduction Maven should be an essential tool in everyday Java development, and of course Gradle is used.So what exactly is Maven?Isn't it just a dependent import tool?I believe many people feel the same way as me.But in general, what you feel is often unrelia ...

Why log backup is needed KubeSphere log system uses the log collection and storage scheme of Fluent Bit + ElasticSearch, realizes the life cycle management of Index through the cursor, and cleans the long-term logs regularly. For scenarios with log audit and disaster recovery requirements, the default 7-day log retention policy of KubeSphere is ...