12 globally recognized Linux Certifications

Hello everyone, today we will recognize some very valuable globally recognized Linux certifications. Linux certification is a global certification program for different Linux Professional institutions. Linux certification allows Linux professionals

New Linux File System Bcachefs

KentOverstreet announced the new Linux File System Bcachefs. Bcachefs originated from the kernel block layer cache called bcache. The author hopes to provide performance similar to XFS/EXT4 and features similar to Btrfs and ZFS. The disk format of

Java error y () wait () sycn...

Java error notify () wait () sycn... -- Linux general technology-Linux programming and kernel information. The following is a detailed description. Import java. util. ArrayList; Public class printer { Public static ArrayList Msgs; Public String

Shell practice: Check whether there are duplicates and extract Duplicated content

Check whether there are duplicates in the second column of the file, and several rows are duplicated, and extract the duplicate rows. The second column actually uses millions of rows, and there are more columns than this, A small part is listed here,

Install tftp server in redhat5.6

In redhat5.6, tftp Server Installation-general Linux technology-Linux technology and application information. The following is a detailed description. Originally my system is not tftp this file, I went to the Internet to find A, the results of the

When I first came, I asked a question about codeblocks.

When I first came, I asked a question about codeblocks. -- Linux general technology-Linux programming and kernel information. The following is a detailed description. I installed codeblocks in RedHat9.0 according to the online method and can detect

The most expensive line of code in the world

The most expensive line of code in the world-general Linux technology-Linux programming and kernel information. The following is a detailed description. If (is. opera) {window. location. href = "config/error.htm ";} Background: One line of JS Code

Shell Escape Character

The Escape Character is extended to the... \ a bell character \ B Escape Character \ eANSI escape character, which is equivalent to the escape character \ 033 Escape characters Extend... \ Ringtone \ B Escape

Add and delete apahce VM in shell script and check whether the VM is normal

1install sendemailtarxvfsendemail-v1.56.tar.gz mvsendEmail-v1.56sendEmail2 add apache Virtual Host shell script: viaddVirtual. sh #! /Bin/bashcat & lt; EOF & gt;/etc/httpd/conf/httpd. conf & lt; VirtualHost *: 80 & gt ;& 1. Install sendEmail Tar xvf

Startup of windows + fedora + ubuntu 3 systems

Windows + fedora + ubuntu 3 system startup problems-general Linux technology-Linux technology and application information, the following is a detailed description. I asked a problem about cooking. I installed fedora17 on the hard disk of windows 7

Shell script to generate server password

I wrote a script that can generate random passwords. If you want to generate only numbers or only letters or upper-case passwords, you can customize them. I have written all the elements here. #! /Bin/bash # author: honway. liu # date: 2013-07-19 #

Regularly back up MySQL databases using shell scripts

Data backup is required for any online e-commerce site. Regardless of version updates or server migration, the importance of backup data is self-evident. Manual data backup not only consumes a lot of time and effort, but is not very professional. As

In linux, is the return value of the c function strcmp questionable?

In linux, is the return value of the c function strcmp questionable? -- Linux general technology-Linux programming and kernel information. The following is a detailed description. In linux, is the return value of the c function strcmp

Monitor script for memcache cache hit rate using shell

Several servers in the company are running multiple memcached processes. In addition to monitoring whether the memcached works normally, whether the instance exists, the company also needs to monitor their cache hit rate. Set an alarm for their

Why does the system prompt "the service cannot be identified" when I enter the system after I install ISCSI on linux"

Why do I install linux and customize the ISCSI installation? When I enter the system, the prompt & quot; service cannot be identified & quot; -- Linux general technology-Linux technology and application information is displayed. The following is a

Shell monitors the disk and prints out the disk

A few days ago, I went to the interview and wrote the last simple shell script. shell monitored more than 80% of the disks and displayed the disk name. The script I wrote at the time was as follows :#! /Bin/basharray = ('df | sed1d | awk & #39;

10 years of programming experience)

Ten years of programming experience (transfer)-General Linux technology-Linux programming and kernel information, the following is a detailed description. I chatted with my friends and was a technical director of a large Internet Enterprise in China.

How to install, configure, and use WINE easily?

How to install, configure, and use WINE easily? -- Linux general technology-Linux technology and application information. For details, refer to the following section. For example, the younger brother wants to give up using Windows and switch to Suse,

About exec ()

For more information about exec ()-General Linux technology-Linux programming and kernel, see the following. // Source code of a. out # Include # Include # Include Int main () { Pid_t pid; Printf ("This is before

Connect the ubuntu system to the Internet. Enter sudopppoeconf on the terminal and the following code is displayed ::

If the ubuntu system is connected to the Internet and the terminal enters sudopppoeconf, the following information is displayed: -- Linux general technology-Linux technology and application information. In ubuntu, enter sudo pppoeconf on the

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