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Regular expression with golang to match complete lines containing 'error' or 'warning' (case insensitive)

I want to print the complete line of each line in the log file that contains warn or error (case insensitive) to the user. Given this: [01-17|18:53:38.179]infoserver/server.go:381thiswouldbeskipped[01-17|18:53:38.280]infoserver/server.go:620thisalso[01-17|18:53:41.180] warnserver/server.go:388somethingiswarned,soshowth

Feb 13, 2024 am 08:21 AM

overflow

Sed command: the amazing streaming text editor in Linux!

The Sed command in Linux is a powerful streaming text editor that can process lines of text sequentially without modifying the original file. Whether you are a beginner or an advanced user, you will feel the powerful functions and convenience it brings when using Sed. In this article, we will introduce the Sed command to you and show you its various uses through simple examples. Example of text file changes using Sed Let's say you have a file called linuxidc.com.txt that contains the following lines: 1,linuxidc,Title639,Price5.903,linuxminihao,Title880,Price1.305,Jo

Feb 12, 2024 pm 11:20 PM

linuxlinux系统linux命令shell脚本linux教程嵌入式linuxlinux入门

Fscanf and omitting fields like in C

Is it possible to omit the field %*s like in C? varpidintfmt.Fscanf(r,"%*s%d",&pid)

Feb 12, 2024 pm 04:18 PM

golang testscript .txtar syntax for text contained in stderr or stdout

I'm learning how to test cli programs using the https://github.com/rogpeppe/go-internaltestscript module. When I use this line in a .txtar file: stderr/Nohelptopic/gm... the actual error output is: Nohelptopic for 'totalfoobar' I get the error usage:stderr[-count=N]'pattern'. I've looked at the documentation here and to be honest, it's hard to understand. I don't see any explanation of what -count=N means

Feb 12, 2024 pm 04:15 PM

Regular expression to match words exactly with boundaries

I'm using golang regex to match exact words with boundaries like "apple", "co." I can't simply use \b because the word can have non-alphanumeric characters at the end like in the example "company" I Try something like this: test:=`(?i)\b(co.)(?:\s|$)`re=regexp.MustCompile(test)matches=re.FindAllString("co.isasecretshortcut",-1 ) but this will give me "co.", I want to get "co." directly, how can I adjust my regex to achieve it.

Feb 12, 2024 pm 01:10 PM

CentOS installation SVN and CentOS installation deletion of the original partition

LINUX is an open source operating system with a high degree of flexibility and customizability. CentOS is an enterprise-level Linux distribution built based on the RedHat Enterprise Linux (RHEL) source code. It is widely used in server environments. Install SVN (Subversion) in CentOS. is a common task, and deleting the original partition is a necessary operation when reconfiguring the hard disk. This article will introduce in detail how to install SVN in CentOS and provide steps to delete the original partition. CentOS installation SVN1. Make sure your CentOS system is connected to the Internet. 2. Open the terminal and log in as the root user. 3. Run in terminal

Feb 12, 2024 am 10:30 AM

安装centossvn删除分区linux操作系统

Where is CentOS installation dep and CentOS installation software?

LINUX is an open source operating system kernel that can run on various hardware platforms. CentOS is a free enterprise-level operating system built based on Red Hat Enterprise Linux (RHEL) source code. CentOS has strong stability and security and is widely used. Applied to server environment. CentOS installation depdep is a tool used to manage Go language project dependencies. Installing dep on CentOS can be completed by the following steps: 1. Make sure you have installed the Go language environment. You can use the following command to check: goversion if it is not installed. Go language environment, please install it first. 2. Open the terminal and execute the following command to download

Feb 12, 2024 am 09:36 AM

centos软件安装deplinux小知识go语言linux操作系统

Install OpenVZ on CentOS and install OpenGauss on CentOS

LINUX is a powerful operating system that provides many features and tools to meet various needs. This article introduces the steps to install OpenVZ and OpenGauss on CentOS. By using these virtualization and database management systems, you can better manage and optimize your server resources and improve system performance and security. LINUX knowledge sharing The `grep` command in the LINUX operating system is a very powerful text search tool. It can search for matching lines in files according to a specified pattern and display the results. If you want to search in a file For lines containing the keyword "centos", you can use the following command: grep "centos" filenam

Feb 11, 2024 pm 11:48 PM

centosopenvzlinux操作系统

How to parse filename formats such as 'PUBLIC001' using regular expressions?

A file needing help with the regular expression for parsing filenames will be named PUBLIC001 "PUBLIC" is the static text in all filenames The last 3 digits - the day of the year. 001 (Jan1)-366 (December 31st of a leap year) is the valid range. What is a regular expression. Is there a way to limit the maximum value to 366? Thanks

Feb 11, 2024 pm 09:57 PM

Deepin Linux system installation tutorial

Deepin Linux system is an operating system based on the open source Linux kernel, which has the advantages of stability, efficiency, security, etc. This article will introduce how to install Deepin Linux system on Win7 system. Preparation tools 1. Deepin Linux system image file 2. UltraISO software (used to make a bootable USB flash drive) 3. An empty USB flash drive (the capacity is recommended to be above 8GB) Installation steps 1. Download the Deepin Linux system image file and save it to in the computer. 2. Open the UltraISO software and insert the USB flash drive into the computer. 3. Select "File" - "Open" in UltraISO and select the downloaded Deepin Linux system image file. 4. Select "Start" in UltraISO -

Feb 11, 2024 pm 09:21 PM

数据丢失bios设置系统安装win7系统

Ubuntu system security and Ubuntu security

As an open source operating system, Ubuntu has always attracted much attention in terms of security. This article will discuss in detail the security of the Ubuntu system and how to strengthen the security of the system to ensure the integrity of user data and system. Ubuntu system security The Ubuntu system itself has high security, mainly based on the following aspects: 1. Updates and vulnerability fixes: Ubuntu regularly releases security updates and patches to fix known vulnerabilities and make up for system security. Users can Keep your system up to date with automatic or manual updates. 2. User rights management: Ubuntu uses user rights management to restrict users’ access and operations to the system. Ordinary users only have limited rights and require administrator rights to proceed.

Feb 11, 2024 pm 06:48 PM

ubuntu安全性用户权限管理敏感数据

Python script for reading different message patterns

I'm trying to make a flexible python script that reads and extracts some weather variables from a synop code. This is the code: importredefextract_data_12_utc(message):#patternmessagepattern=r'(\d{5}),(\d{4}),(\d{2}),(\d{2}),(\d{ 2}),(\d{2}),aaxx(\d{5})(\d{5})(\d{5})(\d{5})(1\d{4})( 2\d{4})(3\d{4})?(4\d{4})

Feb 11, 2024 pm 02:24 PM

python脚本

Basic linux commands - text editing vim

This article introduces the general usage of vim (version 7.4). ****vim is a powerful text editor and an enhanced version of vi. The most commonly used command to use vim to edit a file is: vimfile is a new file or an original file. After executing such a command, the editor will be opened and the contents of the file file will be displayed. As shown in the figure: If it is a new file, the word "file" [new file] will be displayed on the left side of the bottom, and 0,0-1 will be displayed on the right to indicate the number of lines and characters where the current cursor is. If an old file is opened, the words "file" 3L, 66C are displayed on the left side of the bottom, indicating the file name, the line number of the current cursor, and the total number of bytes of the file. Places with no characters in the file will begin with the character ~.

Feb 11, 2024 am 10:39 AM

linuxlinux系统linux命令shell脚本linux教程嵌入式linuxlinux入门

regex.ReplaceAll but adds the same number of characters if replacing

I want a regex match replacement that compares the number of characters replaced with the number of characters replaced, and the missing characters are replaced with spaces. The bigger goal I want to achieve is to have a template with fields and borders that may change (so the number of characters available in some fields may vary), and instead of hardcoding it, I Want to leave a certain number of characters acceptable to the user. My regex statement: \[\s{0,}\w{1,}\s{0,}\] Example template with regex placeholder: |[test1]|[test2]| [test3]|

Feb 11, 2024 am 10:30 AM