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- Relative paths and absolute paths in Linux are so simple
- In Linux systems, absolute paths and relative paths are two methods of specifying the virtual address of a file or directory. So what's the difference between these two path types, and which one should you use in your commands? Let’s find out together. Absolute and Relative Paths in Linux If you have ever used parameter-based Linux commands such as cd or ls, you should know that there are multiple ways to specify the path to a file or directory. You can choose to use plain path expressions or, if you are an advanced Linux user, use complex regular expressions to pass file or directory names to the program. But either way, there are only two ways to specify directory paths in Linux systems: absolute paths and relative paths. absolute
- LINUX . regular-expression 559 2024-02-14 20:36:14
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- Linux data analysis essentials: 9 practical commands
- Data analysis is one of the most popular skills today. It can help us extract valuable information from massive amounts of data to support decision-making and innovation. However, to conduct effective data analysis, we not only need to master relevant theories and methods, but also need to be proficient in using some tools and platforms. The Linux system is one of the operating systems commonly used by data analysts. It provides many powerful and flexible commands that can help us deal with various data problems. This article will introduce you to 9 commonly used commands for data analysis under Linux systems, as well as their functions and usage. Whether you are a Linux newbie or a veteran, these commands will make your data analysis work more efficient and convenient. 1. Head and tail First, let us start with file processing. arts
- LINUX . regular-expression 1195 2024-02-14 20:18:12
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- Find similar text using regular expressions
- I recognized a list of text in different pdf documents. Now I need to extract some values from each text using regular expressions. Some of my patterns are like this: sometext[-]?(.+)[,-]+someothertext but the problem is that some letters may be wrong after recognition ("0" instead of "o", "i" instead of "l" wait). That's why my pattern doesn't match it. I want to use regex like jaro-winkler or levenshtein similarity so that I can extract my_value from s0me text my_value, some other text etc. I know it
- Java . regular-expression 763 2024-02-14 19:03:08
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- SMB installs CentOS and CentOS installs Samba
- In Linux systems, Samba is a very important tool that allows file and printer sharing between Linux systems and Windows systems. Samba provides a simple and effective method to achieve cross-platform file sharing, so that Linux systems can Seamlessly connected to Windows systems, this article will introduce how to install Samba on CentOS and configure file sharing. CentOS, as a popular Linux distribution, provides an easy and fast way to install and configure Samba. Here are the steps to install Samba on CentOS: Before installing any software, we should update the system to get the latest software packages. and security patches, open the terminal
- LINUX . regular-expression 656 2024-02-14 17:15:07
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- CentOS 7.9 installation and centos 7.9 installation ssh
- CentOS7.9 is a very commonly used operating system version when building servers or system management. This article will provide you with detailed steps and instructions for installing CentOS7.9 and installing SSH. CentOS7.9 is a free and open source Linux operating system. It is a binary compatible version based on Red Hat Enterprise Linux (RHEL). The following are the steps to install CentOS7.9: 1. You need to download the ISO image file of CentOS7.9. You can download it from Download the latest CentOS7.9 ISO image file from the CentOS official website. 2. Create a new virtual machine or physical machine on your computer and install
- LINUX . regular-expression 1149 2024-02-13 22:30:19
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- Linux sed command: a complete tutorial to let you master the text processing artifact
- There are many powerful and practical commands in Linux systems that allow you to complete various tasks in the terminal. Among them, the sed command is a command specifically used for text processing. It allows you to search, replace, insert, delete, modify and other operations on text files without opening the file or using an editor. The syntax and functions of the sed command are very rich and flexible. It can be applied in various scenarios, from simple text modification to complex text conversion. This article will take you through the basic concepts, common options, syntax rules and example demonstrations of the sed command, so that you can use the sed command proficiently to process text files. Description This article aims to provide beginners with a comprehensive guide on how to use the sed (stream editor) command in Linux. it covers
- LINUX . regular-expression 1090 2024-02-13 22:09:02
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- python regular expression split function equivalent in golang
- I have the following python code to match the regular expression::importredigits_re=re.compile("([0-9ee.+]*)")p=digits_re.split("hello,whereareyou1.1?")print(p ) it gives this output::['','','h','e','','','l','','l','','o','' ,',','','','','w','','h','e','','','r','e','','','
- Golang . regular-expression 440 2024-02-13 19:45:09
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- Mac search file command?
- Introduction: This article is here to introduce you to the Mac file search command. I hope it will be helpful to you, let’s take a look. How to retrieve the Mac desktop folder that suddenly disappears? Detailed illustrated tutorial On Mac computers, when we delete desktop files, the files are usually moved to the Trash and temporarily saved for 30 days. Before emptying the Trash, we can recover deleted files by following these steps: Open Trash. If you are able to find the desktop folder, just drag it back to the desktop. In addition, if you regularly use TimeMachine for backup, you can restore the disappeared desktop folder by following the following steps: 1. Make sure your external hard drive or network storage device is connected to your Mac computer. 2.Open Tim
- MAC . regular-expression 822 2024-02-13 16:09:30
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- Found an error in Golang Regexp ReplaceAllString?
- packagemainimport("fmt""regexp")constsample=`darted`funcmain(){varre=regexp.MustCompile(`^(.*?)d(.*)$`)s:=re.ReplaceAllString(sample,`$1c$2`)fmt.Println(s)//prints'arted'expected:carted}去游乐场：https://go.d
- Golang . regular-expression 841 2024-02-13 15:51:17
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- Debian PHP7 installation and Debian installation PHP7.4
- PHP is a widely used server-side scripting language that is very important for web development. In Debian systems, it is very simple to install PHP7 and PHP7.4. -gdphp7.0-intlphp-pearphp-imagickphp7.0-imapphp7.0-mcryptphp-memcachephp7.0-pspellphp7.0-recodephp7.0-sqlite3php7.0-tidyphp7.0-xmlrpcphp7.0-xslphp7.0-zipDebian installation of PHP7 .4 step 17.4php7.4-fpmphp
- LINUX . regular-expression 497 2024-02-13 15:18:08
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- Unmarshalling fails with 'Invalid character '\x00' in string literal'
- What go version are you using (go version)? Will the latest version of $goversiongo1.19.1 reproduce this problem? What operating system and processor architecture are you using (goenv)? linux what did you do? packagemainimport("encoding/json""fmt""strconv""strings")funcunescapeunicode(ucontentstring)(string,error){content:=
- Golang . regular-expression 486 2024-02-13 14:15:08
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- Ignore lines containing pattern in long text file in Go
- I'm trying to implement a function to ignore lines containing a pattern in a long text file (ascii guaranteed) in go. My functions below both withoutignore and withignore accept a filename argument as input and return a *byte.buffer which can subsequently be used to write to io. writer. The withignore function takes the additional parameter pattern to exclude lines containing the pattern from the file. The function works, but through benchmarking it was found to be 5 times slower than without neglect. Is there any way it can be improved? packagemainimport("bufio" "bytes"
- Golang . regular-expression 952 2024-02-13 13:57:19
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- 6 Linux metacharacters I love using on the command line
- Early on in my Linux journey, I learned how to use the command line. This is what makes Linux unique. I might lose the graphical user interface (GUI), but there's no need to completely rebuild the machine. Many Linux computers run in headless mode, where you can complete all management tasks on the command line. It uses many basic commands that everyone is familiar with, such as ls, ls-l, ls-l, cd, pwd, top, etc. Shell Metacharacters on Linux You can expand each of these commands by using metacharacters. I don't know what you call them, but using metacharacters on the Linux command line is a great way to increase productivity. Pipes | Let's say I want to know all Fi running on my system
- LINUX . regular-expression 389 2024-02-13 12:30:27
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- Get the type name of a generic struct without type parameters
- Let's say I have a generic struct called foo from which I create two objects. I can determine the specific type of each using reflect.typeof() like this: packagemainimport("fmt""reflect")typefoo[tany]struct{datat}funcmain(){a:=foo[string]{"cheese "}b:=foo[int]{42}fmt.println(reflect.typeo
- Golang . regular-expression 1150 2024-02-13 12:27:07
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- Use Linux AWK commands to make data processing more efficient!
- In Linux systems, we often need to process and analyze data in various formats. At this time, a simple and powerful tool comes in handy - AWK. AWK is a text processing tool that can quickly process text files and is very suitable for various tasks such as log analysis, data extraction, and statistical reports. In this article, we will introduce you to the basic usage and common application scenarios of AWK, so that you can easily master this data processing tool. 0. Basic usage awk is a powerful text analysis tool. Simply put, awk reads the file line by line. (Space, tab) is the default delimiter to slice each line, and then perform various analyzes on the cut parts. The format of processing awk command is as follows awk[-Ffield
- LINUX . regular-expression 856 2024-02-13 08:48:11
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