sed ssd

Can ssd be used as a redo disk? 1. ssd has write wear and tear, and the ssd write performance is not very good. ssd is only very good for random reading, because it does not need to be searched. Ssd is easy to damage. 2. index tablespace and temporary tablespace are good cho

Sed and awk are * powerful text processing artifacts in Nix command lines. they are all row-oriented, or they process text in one row and one row. They read content from standard input or files and execute script commands in one row, then print the output to the standard output until the end of the file (EOF ). Sed Sed is a stream editor. It is used to edit and p

Original article in: http://bbs.linuxtone.org/thread-1731-1-1.html For example, to change the zhangsan in all the files under the directory/modules to Lisi, do the following: Sed-I "s/zhangsan/Lisi/g" 'grep zhangsan-RL/Les' Explanations: -I indicates inplace edit, modifying files in place-R indicates searching for subdirectories-L indicates the output file name. This command combination is very powerful, pay attention to backup files.(1)

Sed commands for file operations, sed commands for detailsFile Modification in a simple shell script in Linux1. Introduction to SedSed is an online editor that processes a row of content at a time. During processing, the currently processed rows are stored in the temporary buffer, called patternspace. Then, the sed command is used to process the content in the bu

Sed commands use metacharacters with regular expressions, and sed commands use regular expressions 1. IntroductionSed is a non-interactive editor. It does not modify the file unless you use shell redirection to save the results. By default, all output rows are printed to the screen.Sed editor processes files (or inputs) row by row and sends the results to the screen. The specific process is as follows: firs

When asked whether traditional raid can be built on SSD, the first response should be "yes, but trim command support is required ". On the Internet, we can also see that many people use SSD to create raid, but basically it is configured as RAID 0 or raid 1. Few people will build RAID5. Why? The answer is very simple. If you configure parity-raid like RAID 5 on the basis of

Detailed explanation of linux sed commands and sed commands Sed is a good file processing tool. It is a pipeline command mainly used for processing by behavior units. It can replace, delete, add, and select data rows, next, let's take a look at the usage of sed.Sed command line format:Sed [-nefri] 'command' input text Common options:-N: Use silent mode. In genera

Introduction to Sed and Sed ================== Sed ==========================Sed: A stream editing tool used to filter and replace texts, especially when you want to uniformly modify dozens of configuration files, sed reads only one line of content at a time to process and o

I haven't updated my blog for a long time. A while ago, I experienced my first job hopping, which is much harder than I thought. After all, it was the first job and it was quite sad to leave. The new job has just begun, and we hope everything will go well. This blog was written during May 1, and is officially posted today. It is a good habit to write a technical blog. I want to keep it! When I was in the previous job, I always wanted to try Flash/SSD

Sed and AWK getting started. Sed and AWK are text processing artifacts in * nix command lines, which are quite powerful. they are all row-oriented, or they process text in one row after another, read the content from the standard input or file, execute the script command in one row, and then print... sed and AWK getting started.

What is a solid state drive and how long is the SSD life?SSD refers to the use of flash memory chip composed of SSD SSD, is the use of flash flash memory particles as a storage unit, no longer using traditional mechanical storage methods, the use of simulated virtual hard disk access and sectors, etc., can also simply

The basic usage of sed and the usage of sed Sed basic workflow Sed: Stream EDitor (by default, the original text is not processed, and only the data in the mode space is processed. After the processing is completed, the content of the mode space is printed to the screen)-row EDitor

Sed and AWK getting started. Sed and AWK are text processing artifacts in * nix command lines, which are quite powerful. they are all row-oriented, or they process text in one row and one row. They read content from standard input or files and execute script commands in one row, then print the output to the standard output until the end of the file (EOF ). sedSed is a Stream editor. It is used to edit and p

As SSD How to use? How do you look at 4k alignment? 　　About as SSD software: As SSD is a professional SSD (SSD) transmission Speed Test tool, it can not only test the speed of solid-state hard disk reading, but also can detect