538 skills found · Page 9 of 18
ao / RunJavascript ChromeExtensionA simple Chrome Extension that allows you to run some Javascript each time you are on that domain.
jameschch / Blazor.DynamicJavascriptRuntime.EvaluatorExecute dynamic object expressions as Javascript in Blazor
eostermueller / JavaPerformanceTroubleshootingLive Demonstrations of Java Performance Problems. Instructions: https://github.com/eostermueller/javaPerformanceTroubleshooting/wiki/Install-and-Run
jakobadam / Plupload Java Runtime(deprecated) Plupload Java Runtime
khaleesicodes / MatildaLightweight run-time level sandboxing for java
rpbouman / XmondrianA java web archive (.WAR) to easily deploy and run the mondrian OLAP engine. Includes example schemas and datasets, client libraries, and web-frontends.
AdithyaYelloju / Restaurant Management SystemThe Restaurant Management System is developed to keep records of the Restaurant like the food items, orders with online food ordering facility and provides managing facility for the restaurant. It is the web based project developed using PHP for backend, MySQL for database, CSS, HTML and Java Script. We named this as Food Corner with tag line chase the flavors. We used xampp server to run this project in ubuntu operating system.
sanusanth / C Basic Simple ProgramWhat is C++? C++ is a general-purpose, object-oriented programming language. It was created by Bjarne Stroustrup at Bell Labs circa 1980. C++ is very similar to C (invented by Dennis Ritchie in the early 1970s). C++ is so compatible with C that it will probably compile over 99% of C programs without changing a line of source code. Though C++ is a lot of well-structured and safer language than C as it OOPs based. Some computer languages are written for a specific purpose. Like, Java was initially devised to control toasters and some other electronics. C was developed for programming OS. Pascal was conceptualized to teach proper programming techniques. But C++ is a general-purpose language. It well deserves the widely acknowledged nickname "Swiss Pocket Knife of Languages." C++ is a cross-platform language that can be used to create high-performance applications. C++ was developed by Bjarne Stroustrup, as an extension to the C language. C++ gives programmers a high level of control over system resources and memory. The language was updated 3 major times in 2011, 2014, and 2017 to C++11, C++14, and C++17. About C++ Programming Multi-paradigm Language - C++ supports at least seven different styles of programming. Developers can choose any of the styles. General Purpose Language - You can use C++ to develop games, desktop apps, operating systems, and so on. Speed - Like C programming, the performance of optimized C++ code is exceptional. Object-oriented - C++ allows you to divide complex problems into smaller sets by using objects. Why Learn C++? C++ is used to develop games, desktop apps, operating systems, browsers, and so on because of its performance. After learning C++, it will be much easier to learn other programming languages like Java, Python, etc. C++ helps you to understand the internal architecture of a computer, how computer stores and retrieves information. How to learn C++? C++ tutorial from Programiz - We provide step by step C++ tutorials, examples, and references. Get started with C++. Official C++ documentation - Might be hard to follow and understand for beginners. Visit official C++ documentation. Write a lot of C++ programming code- The only way you can learn programming is by writing a lot of code. Read C++ code- Join Github's open-source projects and read other people's code. C++ best programming language? The answer depends on perspective and requirements. Some tasks can be done in C++, though not very quickly. For example, designing GUI screens for applications. Other languages like Visual Basic, Python have GUI design elements built into them. Therefore, they are better suited for GUI type of task. Some of the scripting languages that provide extra programmability to applications. Such as MS Word and even photoshop tend to be variants of Basic, not C++. C++ is still used widely, and the most famous software have their backbone in C++. This tutorial will help you learn C++ basic and the advanced concepts. Who uses C++? Some of today's most visible used systems have their critical parts written in C++. Examples are Amadeus (airline ticketing) Bloomberg (financial formation), Amazon (Web commerce), Google (Web search) Facebook (social media) Many programming languages depend on C++'s performance and reliability in their implementation. Examples include: Java Virtual Machines JavaScript interpreters (e.g., Google's V8) Browsers (e.g., Internet Explorer, Mozilla's Firefox, Apple's Safari, and Google's Chrome) Application and Web frameworks (e.g., Microsoft's .NET Web services framework). Applications that involve local and wide area networks, user interaction, numeric, graphics, and database access highly depend on C++ language. Why Use C++ C++ is one of the world's most popular programming languages. C++ can be found in today's operating systems, Graphical User Interfaces, and embedded systems. C++ is an object-oriented programming language which gives a clear structure to programs and allows code to be reused, lowering development costs. C++ is portable and can be used to develop applications that can be adapted to multiple platforms. C++ is fun and easy to learn! As C++ is close to C# and Java, it makes it easy for programmers to switch to C++ or vice versa Definition - What does C++ Programming Language mean? C++ is an object oriented computer language created by notable computer scientist Bjorne Stroustrop as part of the evolution of the C family of languages. Some call C++ “C with classes” because it introduces object oriented programming principles, including the use of defined classes, to the C programming language framework. C++ is pronounced "see-plus-plus." C++ Variables Variables are the backbone of any programming language. A variable is merely a way to store some information for later use. We can retrieve this value or data by referring to a "word" that will describe this information. Once declared and defined they may be used many times within the scope in which they were declared. C++ Control Structures When a program runs, the code is read by the compiler line by line (from top to bottom, and for the most part left to right). This is known as "code flow." When the code is being read from top to bottom, it may encounter a point where it needs to make a decision. Based on the decision, the program may jump to a different part of the code. It may even make the compiler re-run a specific piece again, or just skip a bunch of code. You could think of this process like if you were to choose from different courses from Guru99. You decide, click a link and skip a few pages. In the same way, a computer program has a set of strict rules to decide the flow of program execution. C++ Syntax The syntax is a layout of words, expression, and symbols. Well, it's because an email address has its well-defined syntax. You need some combination of letters, numbers, potentially with underscores (_) or periods (.) in between, followed by an at the rate (@) symbol, followed by some website domain (company.com). So, syntax in a programming language is much the same. They are some well-defined set of rules that allow you to create some piece of well-functioning software. But, if you don't abide by the rules of a programming language or syntax, you'll get errors. C++ Tools In the real world, a tool is something (usually a physical object) that helps you to get a certain job done promptly. Well, this holds true with the programming world too. A tool in programming is some piece of software which when used with the code allows you to program faster. There are probably tens of thousands, if not millions of different tools across all the programming languages. Most crucial tool, considered by many, is an IDE, an Integrated Development Environment. An IDE is a software which will make your coding life so much easier. IDEs ensure that your files and folders are organized and give you a nice and clean way to view them. Types of C++ Errors Another way to look at C++ in a practical sense is to start enumerating different kinds of errors that occur as the written code makes its way to final execution. First, there are syntax errors where the code is actually written in an illegible way. This can be a misuse of punctuation, or the misspelling of a function command or anything else that compromises the integrity of the syntax as it is written. Another fundamental type of error is a compiler error that simply tells the programmer the compiler was not able to do its work effectively. As a compiler language, C++ relies on the compiler to make the source code into machine readable code and optimize it in various ways. A third type of error happens after the program has been successfully compiled. Runtime errors are not uncommon in C++ executables. What they represent is some lack of designated resource or non-working command in the executable program. In other words, the syntax is right, and the program was compiled successfully, but as the program is doing its work, it encounters a problem, whether that has to do with interdependencies, operating system requirements or anything else in the general environment in which the program is trying to work. Over time, C++ has remained a very useful language not only in computer programming itself, but in teaching new programmers about how object oriented programming works.
nikulkarni / Webdriver AccessibilityA Java library to run accessibility audits with Selenium WebDriver
Tateology / Java CorpusCorpus of runnable, open-source Java 1.5+ programs.
xiboliya / SnowpadA notepad which can run in Windows/Linux/macOS write by java.
prat-man / Unique4jJava library to allow only single instance of a java application to run and enable communication between first instance and subsequent instances
michaellass / Archlinux Java RunJava Application Launcher for Arch Linux
battlesnake / BootserverJAVA: My first Java program, from back in ~2011. Partial DHCP/BOOTP/TFTP server, sufficient for serving PXE network installers for most Linux distros. Written in Java so that it would run on Windows/Linux/Android/BSD without much fuss (although Ubuntu seems to have other ideas). Includes optional hack to "support" symbolic links in Windows
DayeShing / Apiface一套java后端自动生成接口并支持用例测试的工具(Tools that run in an operational or development environment)
tideworks / Spartan LauncherSpartan is a "forking" java program launcher - Java supervisor process can launch Java child worker processes (uses Linux fork and then instantiates JVM). Child programs run as same user identity/permissions capability - no authentication or special permissioning necessary. Share the same Java code amongst parent supervisor and children processes.
PhongPham101190 / Red C SDKMEGA SDK - Client Access Engine Coverity Scan Build Status MEGA --- The Privacy Company --- is a Secure Cloud Storage provider that protects your data thanks to end-to-end encryption. We call it User Controlled Encryption, or UCE, and all our clients automatically manage it. All files stored on MEGA are encrypted. All data transfers from and to MEGA are encrypted. And while most cloud storage providers can and do claim the same, MEGA is different – unlike the industry norm where the cloud storage provider holds the decryption key, with MEGA, you control the encryption, you hold the keys, and you decide who you grant or deny access to your files. This SDK brings you all the power of our client applications and let you create your own or analyze the security of our products. Are you ready to start? Please continue reading. SDK Contents In this SDK, you can find our low level SDK, that was already released few months after the MEGA launch, a new intermediate layer to make it easier to use and to bind with other programming languages, and example apps for all our currently supported platforms (Windows, Linux, OSX, Android, iOS and Windows Phone). In the examples folder you can find example apps using: The low level SDK: megacli (a powerful command line tool that allows to use all SDK features) megasimplesync (a command line tool that allows to use the synchronization engine) The intermediate layer: An example app for Visual Studio in examples/win32 An example app for Android (using Java bindings based on SWIG) in examples/android An example app for iOS (using Objective-C bindings) in examples/iOS An example app for Windows Phone (using Windows Phone bindings) in examples/wp8 Building If you plan to develop an app using this SDK, please use the stable branch or the last released tarball. The master branch is continuously evolving, could be unstable and could change very often. For platforms with Autotools, the generic way to build and install it is: sh autogen.sh ./configure make sudo make install That compilation will include the examples using our low level SDK (megacli and megasimplesync) You also have specific build instructions for OSX (doc/OSX.txt) and FreeBSD (doc/FreeBSD.txt) and a build script to automatically download and build the SDK along with all its dependencies (contrib/build_sdk.sh) For other platforms, or if you want to see how to use the new intermediate layer, the easiest way is to get a smooth start is to build one of the examples in subfolders of the examples folder. All these folders contains a README.md file with information about how to get the project up and running, including the installation of all required dependencies. Usage The low level SDK doesn't have inline documentation yet. If you want to use it, please check one of our example apps (examples/megacli, examples/megasimplesync). The new intermediate layer has been documented using Doxygen. The only public header that you need to include to use is include/megaapi.h. You can read the documentation in that header file, or download the same documentation in HTML format from this link: https://mega.co.nz/#!c5FzhBJL!HUVjsOJTylwkmXPZ0AxT66Wuu4YvZInyHbWGYgvTHt4 Additional info Platform Dependencies Dependencies are different for each platform because the SDK uses generic interfaces to get some features and they have different implentations: Network (cURL with OpenSSL/c-ares or WinHTTP) Filesystem access (Posix or Win32) Graphics management (FreeImage, QT or iOS frameworks) Database (SQLite or Berkeley DB) Threads/mutexes (Win32, pthread, QT threads, or C++11) POSIX (Linux/Darwin/BSD/OSX ...) Install the following development packages, if available, or download and compile their respective sources (package names are for Debian and RedHat derivatives, respectively): cURL (libcurl4-openssl-dev, libcurl-devel), compiled with --enable-ssl c-ares (libc-ares-dev, libcares-devel, c-ares-devel) OpenSSL (libssl-dev, openssl-devel) Crypto++ (libcrypto++-dev, libcryptopp-devel) zlib (zlib1g-dev, zlib-devel) SQLite (libsqlite3-dev, sqlite-devel) or configure --without-sqlite FreeImage (libfreeimage-dev, freeimage-devel) or configure --without-freeimage pthread Optional dependency: Sodium (libsodium-dev, libsodium-devel), configure --with-sodium Filesystem event monitoring: The provided filesystem layer implements the Linux inotify and the MacOS fsevents interfaces. To build the reference megacli example, you may also need to install: GNU Readline (libreadline-dev, readline-devel) For Android, we provide an additional implementation of the graphics subsystem using Android libraries. For iOS, we provide an additional implementation of the graphics subsystem using Objective C frameworks. Windows To build the client access engine under Windows, you'll need the following: A Windows-native C++ development environment (e.g. MinGW or Visual Studio) Crypto++ zlib (until WinHTTP learns how to deal with Content-Encoding: gzip) SQLite or configure --without-sqlite FreeImage or configure --without-freeimage pthreads (MinGW) Optional dependency: Sodium or configure --with-sodium To build the reference megacli.exe example, you will also need to procure development packages (at least headers and .lib/.a libraries) of: GNU Readline/Termcap Folder syncing In this version, the sync functionality is limited in scope and functionality: There is no locking between clients accessing the same remote folder. Concurrent creation of identically named files and folders can result in server-side dupes. Syncing between clients with differing filesystem naming semantics can lead to loss of data, e.g. when syncing a folder containing ABC.TXT and abc.txt with a Windows client. On POSIX platforms, filenames are assumed to be encoded in UTF-8. Invalid byte sequences can lead to undefined behaviour. Local filesystem items must not be exposed to the sync subsystem more than once. Any dupes, whether by nesting syncs or through filesystem links, will lead to unexpected results and loss of data. No in-place versioning. Deleted remote files can be found in //bin/SyncDebris (only when syncing to the logged in account's own cloud drive - there is no SyncDebris facility on syncs to inbound shares), deleted local files in a sync-specific hidden debris folder located in the local sync's root folder. No delta writes. Changed files are always overwritten as a whole, which means that it is not a good idea to sync e.g. live database tables. No direct peer-to-peer syncing. Even two machines in the same local subnet will still sync via the remote storage infrastructure. No support for unidirectional syncing (backup-only, restore-only). Syncing to an inbound share requires it to have full access rights. megacli on Windows The megacli example is currently not handling console Unicode input/output correctly if run in cmd.exe. Filename caveats: Please prefix all paths with \\?\ to avoid the following issues: The MAX_PATH (260 character) length limitation, which would make it impossible to access files in deep directory structures Prohibited filenames (con/prn/aux/clock$/nul/com1...com9/lpt1...lpt9). Such files and folders will still be inaccessible through e.g. Explorer! Also, disable automatic short name generation to eliminate the risk of clashes with existing short names.
SmileShow-DH / Linux 查看软件xxx安装内容 #dpkg -L xxx 查找软件 #apt-cache search 正则表达式 查找文件属于哪个包 #dpkg -S filename apt-file search filename 查询软件xxx依赖哪些包 #apt-cache depends xxx 查询软件xxx被哪些包依赖 #apt-cache rdepends xxx 增加一个光盘源 #sudo apt-cdrom add 系统升级 #sudo apt-get update #sudo apt-get upgrade #sudo apt-get dist-upgrade 清除所以删除包的残余配置文件 #dpkg -l |grep ^rc|awk ‘{print $2}’ |tr [”"n”] [” “]|sudo xargs dpkg -P - 编译时缺少h文件的自动处理 #sudo auto-apt run ./configure 查看安装软件时下载包的临时存放目录 #ls /var/cache/apt/archives 备份当前系统安装的所有包的列表 #dpkg –get-selections | grep -v deinstall > ~/somefile 从上面备份的安装包的列表文件恢复所有包 #dpkg –set-selections < ~/somefile sudo dselect 清理旧版本的软件缓存 #sudo apt-get autoclean 清理所有软件缓存 #sudo apt-get clean 删除系统不再使用的孤立软件 #sudo apt-get autoremove 查看包在服务器上面的地址 #apt-get -qq –print-uris install ssh | cut -d"’ -f2 ------------------------------------------------系统------------------------------------------------ 查看内核 #uname -a 查看Ubuntu版本 #cat /etc/issue 查看内核加载的模块 #lsmod 查看PCI设备 #lspci 查看USB设备 #lsusb 查看网卡状态 #sudo ethtool eth0 查看CPU信息 #cat /proc/cpuinfo 显示当前硬件信息 #lshw ------------------------------------------------硬盘------------------------------------------------ 查看硬盘的分区 #sudo fdisk -l 查看IDE硬盘信息 #sudo hdparm -i /dev/hda 查看STAT硬盘信息 #sudo hdparm -I /dev/sda 或 #sudo apt-get install blktool #sudo blktool /dev/sda id 查看硬盘剩余空间 #df -h #df -H 查看目录占用空间 #du -hs 目录名 优盘没法卸载 #sync fuser -km /media/usbdisk ------------------------------------------------内存------------------------------------------------ 查看当前的内存使用情况 #free -m 进程查看当前有哪些进程 #ps -A 中止一个进程 #kill 进程号(就是ps -A中的第一列的数字) 或者 killall 进程名 强制中止一个进程(在上面进程中止不成功的时候使用) #kill -9 进程号 或者 killall -9 进程名 图形方式中止一个程序 #xkill 出现骷髅标志的鼠标，点击需要中止的程序即可 查看当前进程的实时状况 #top 查看进程打开的文件 #lsof -p ADSL 配置 ADSL #sudo pppoeconf ADSL手工拨号 #sudo pon dsl-provider 激活 ADSL #sudo /etc/ppp/pppoe_on_boot 断开 ADSL #sudo poff 查看拨号日志 #sudo plog 如何设置动态域名 #首先去http://www.3322.org申请一个动态域名 #然后修改 /etc/ppp/ip-up 增加拨号时更新域名指令 sudo vim /etc/ppp/ip-up #在最后增加如下行 w3m -no-cookie -dump ------------------------------------------------网络------------------------------------------------ 根据IP查网卡地址 #arping IP地址 查看当前IP地址 #ifconfig eth0 |awk ‘/inet/ {split($2,x,”:”);print x[2]}’ 查看当前外网的IP地址 #w3m -no-cookie -dumpwww.edu.cn|grep-o‘[0-9]"{1,3"}".[0-9]"{1,3"}".[0-9]"{1,3"}".[0-9]"{1,3"}’ #w3m -no-cookie -dumpwww.xju.edu.cn|grep-o’[0-9]"{1,3"}".[0-9]"{1,3"}".[0-9]"{1,3"}".[0-9]"{1,3"}’ #w3m -no-cookie -dump ip.loveroot.com|grep -o’[0-9]"{1,3"}".[0-9]"{1,3"}".[0-9]"{1,3"}".[0-9]"{1,3"}’ 查看当前监听80端口的程序 #lsof -i :80 查看当前网卡的物理地址 #arp -a | awk ‘{print $4}’ ifconfig eth0 | head -1 | awk ‘{print $5}’ 立即让网络支持nat #sudo echo 1 > /proc/sys/net/ipv4/ip_forward #sudo iptables -t nat -I POSTROUTING -j MASQUERADE 查看路由信息 #netstat -rn sudo route -n 手工增加删除一条路由 #sudo route add -net 192.168.0.0 netmask 255.255.255.0 gw 172.16.0.1 #sudo route del -net 192.168.0.0 netmask 255.255.255.0 gw 172.16.0.1 修改网卡MAC地址的方法 #sudo ifconfig eth0 down 关闭网卡 #sudo ifconfig eth0 hw ether 00:AA:BB:CC:DD:EE 然后改地址 #sudo ifconfig eth0 up 然后启动网卡 统计当前IP连接的个数 #netstat -na|grep ESTABLISHED|awk ‘{print $5}’|awk -F: ‘{print $1}’|sort|uniq -c|sort -r -n #netstat -na|grep SYN|awk ‘{print $5}’|awk -F: ‘{print $1}’|sort|uniq -c|sort -r -n 统计当前20000个IP包中大于100个IP包的IP地址 #tcpdump -tnn -c 20000 -i eth0 | awk -F “.” ‘{print $1″.”$2″.”$3″.”$4}’ | sort | uniq -c | sort -nr | awk ‘ $1 > 100 ‘ 屏蔽IPV6 #echo “blacklist ipv6″ | sudo tee /etc/modprobe.d/blacklist-ipv6 ------------------------------------------------服务------------------------------------------------ 添加一个服务 #sudo update-rc.d 服务名 defaults 99 删除一个服务 #sudo update-rc.d 服务名 remove 临时重启一个服务 #/etc/init.d/服务名 restart 临时关闭一个服务 #/etc/init.d/服务名 stop 临时启动一个服务 #/etc/init.d/服务名 start ------------------------------------------------设置------------------------------------------------ 配置默认Java使用哪个 #sudo update-alternatives –config java 修改用户资料 #sudo chfn userid 给apt设置代理 #export http_proxy=http://xx.xx.xx.xx:xxx 修改系统登录信息 #sudo vim /etc/motd ------------------------------------------------中文------------------------------------------------ 转换文件名由GBK为UTF8 #sudo apt-get install convmv convmv -r -f cp936 -t utf8 –notest –nosmart * 批量转换src目录下的所有文件内容由GBK到UTF8 #find src -type d -exec mkdir -p utf8/{} "; find src -type f -exec iconv -f GBK -t UTF-8 {} -o utf8/{} "; mv utf8/* src rm -fr utf8 转换文件内容由GBK到UTF8 #iconv -f gbk -t utf8 $i > newfile 转换 mp3 标签编码 #sudo apt-get install python-mutagen find . -iname “*.mp3” -execdir mid3iconv -e GBK {} "; 控制台下显示中文 #sudo apt-get install zhcon 使用时，输入zhcon即可 ------------------------------------------------文件------------------------------------------------ 快速查找某个文件 #whereis filename #find 目录 -name 文件名 查看文件类型 #file filename 显示xxx文件倒数6行的内容 #tail -n 6 xxx 让tail不停地读地最新的内容 #tail -n 10 -f /var/log/apache2/access.log 查看文件中间的第五行（含）到第10行（含）的内容 #sed -n ‘5,10p’ /var/log/apache2/access.log 查找包含xxx字符串的文件 #grep -l -r xxx . 全盘搜索文件(桌面可视化) gnome-search-tool 查找关于xxx的命令 #apropos xxx man -k xxx 通过ssh传输文件 #scp -rp /path/filenameusername@remoteIP:/path #将本地文件拷贝到服务器上 #scp -rpusername@remoteIP:/path/filename/path #将远程文件从服务器下载到本地 查看某个文件被哪些应用程序读写 #lsof 文件名 把所有文件的后辍由rm改为rmvb #rename ’s/.rm$/.rmvb/’ * 把所有文件名中的大写改为小写 #rename ‘tr/A-Z/a-z/’ * 删除特殊文件名的文件，如文件名：–help.txt #rm — –help.txt 或者 rm ./–help.txt 查看当前目录的子目录 #ls -d */. 或 echo */. 将当前目录下最近30天访问过的文件移动到上级back目录 #find . -type f -atime -30 -exec mv {} ../back "; 将当前目录下最近2小时到8小时之内的文件显示出来 #find . -mmin +120 -mmin -480 -exec more {} "; 删除修改时间在30天之前的所有文件 #find . -type f -mtime +30 -mtime -3600 -exec rm {} "; 查找guest用户的以avi或者rm结尾的文件并删除掉 #find . -name ‘*.avi’ -o -name ‘*.rm’ -user ‘guest’ -exec rm {} "; 查找的不以java和xml结尾,并7天没有使用的文件删除掉 #find . ! -name *.java ! -name ‘*.xml’ -atime +7 -exec rm {} "; 统计当前文件个数 #ls /usr/bin|wc -w 统计当前目录个数 #ls -l /usr/bin|grep ^d|wc -l 显示当前目录下2006-01-01的文件名 #ls -l |grep 2006-01-01 |awk ‘{print $8}’ ------------------------------------------------FTP------------------------------------------------ 上传下载文件工具-filezilla #sudo apt-get install filezilla filezilla无法列出中文目录？ 站点->字符集->自定义->输入：GBK 本地中文界面 1）下载filezilla中文包到本地目录，如~/ 2）#unrar x Filezilla3_zhCN.rar 3) 如果你没有unrar的话，请先安装rar和unrar #sudo apt-get install rar unrar #sudo ln -f /usr/bin/rar /usr/bin/unrar 4）先备份原来的语言包,再安装；实际就是拷贝一个语言包。 #sudo cp /usr/share/locale/zh_CN/filezilla.mo /usr/share/locale/zh_CN/filezilla.mo.bak #sudo cp ~/locale/zh_CN/filezilla.mo /usr/share/locale/zh_CN/filezilla.mo 5）重启filezilla,即可！ --------------------------------------解压缩--------------------------------------------- 解压缩 xxx.tar.gz #tar -zxvf xxx.tar.gz 解压缩 xxx.tar.bz2 #tar -jxvf xxx.tar.bz2 压缩aaa bbb目录为xxx.tar.gz #tar -zcvf xxx.tar.gz aaa bbb 压缩aaa bbb目录为xxx.tar.bz2 #tar -jcvf xxx.tar.bz2 aaa bbb 解压缩 RAR 文件 1) 先安装 #sudo apt-get install rar unrar #sudo ln -f /usr/bin/rar /usr/bin/unrar 2) 解压 #unrar x aaaa.rar 解压缩 ZIP 文件 1) 先安装 #sudo apt-get install zip unzip #sudo ln -f /usr/bin/zip /usr/bin/unzip 2) 解压 #unzip x aaaa.zip Nautilus 显示隐藏文件 Ctrl+h 显示地址栏 Ctrl+l 特殊 URI 地址 * computer:/// - 全部挂载的设备和网络 * network:/// - 浏览可用的网络 * burn:/// - 一个刻录 CDs/DVDs 的数据虚拟目录 * smb:/// - 可用的 windows/samba 网络资源 * x-nautilus-desktop:/// - 桌面项目和图标 *file:///- 本地文件 * trash:/// - 本地回收站目录 * ftp:// - FTP 文件夹 * ssh:// - SSH 文件夹 * fonts:/// - 字体文件夹，可将字体文件拖到此处以完成安装 * themes:/// - 系统主题文件夹 查看已安装字体 在nautilus的地址栏里输入”fonts:///“，就可以查看本机所有的fonts --------------------------------------程序 -------------------------------------- 详细显示程序的运行信息 #strace -f -F -o outfile 日期和时间 设置日期 #date -s mm/dd/yy 设置时间 #date -s HH:MM 将时间写入CMOS #hwclock –systohc 读取CMOS时间 #hwclock –hctosys 从服务器上同步时间 #sudo ntpdate time.nist.gov #sudo ntpdate time.windows.com 控制台 不同控制台间切换 Ctrl + ALT + ← Ctrl + ALT + → 指定控制台切换 Ctrl + ALT + Fn(n:1~7) 控制台下滚屏 SHIFT + pageUp/pageDown 控制台抓图 #setterm -dump n(n:1~7) --------------------------------------数据库 -------------------------------------- mysql的数据库存放在地方 #/var/lib/mysql 从mysql中导出和导入数据 #mysqldump 数据库名 > 文件名 #导出数据库 #mysqladmin create 数据库名 #建立数据库 #mysql 数据库名 < 文件名 #导入数据库 忘了mysql的root口令怎么办 #sudo /etc/init.d/mysql stop #sudo mysqld_safe –skip-grant-tables #sudo mysqladmin -u user password ‘newpassword” #sudo mysqladmin flush-privileges 修改mysql的root口令 #sudo mysqladmin -uroot -p password ‘你的新密码’ --------------------------------------其它 -------------------------------------- 下载网站文档 #wget -r -p -np -khttp://www.21cn.com · r：在本机建立服务器端目录结构； · -p: 下载显示HTML文件的所有图片； · -np：只下载目标站点指定目录及其子目录的内容； · -k: 转换非相对链接为相对链接。 如何删除Totem电影播放机的播放历史记录 #rm ~/.recently-used 如何更换gnome程序的快捷键 点击菜单，鼠标停留在某条菜单上，键盘输入任意你所需要的键，可以是组合键，会立即生效； 如果要清除该快捷键，请使用backspace vim 如何显示彩色字符 #sudo cp /usr/share/vim/vimcurrent/vimrc_example.vim /usr/share/vim/vimrc 如何在命令行删除在会话设置的启动程序 #cd ~/.config/autostart rm 需要删除启动程序 如何提高wine的反应速度 #sudo sed -ie ‘/GBK/,/^}/d’ /usr/share/X11/locale/zh_CN.UTF-8/XLC_LOCALE #chgrp [语法]: chgrp [-R] 文件组 文件… [说明]： 文件的GID表示文件的文件组，文件组可用数字表示， 也可用一个有效的组名表示，此命令改变一个文件的GID，可参看chown。 -R 递归地改变所有子目录下所有文件的存取模式 [例子]: ＃chgrp group file 将文件 file 的文件组改为 group #chmod [语法]: chmod [-R] 模式 文件… 或 chmod [ugoa] {+|-|=} [rwxst] 文件… [说明]: 改变文件的存取模式，存取模式可表示为数字或符号串，例如： ＃chmod nnnn file ， n为0-7的数字，意义如下: 4000 运行时可改变UID 2000 运行时可改变GID 1000 置粘着位 0400 文件主可读 0200 文件主可写 0100 文件主可执行 0040 同组用户可读 0020 同组用户可写 0010 同组用户可执行 0004 其他用户可读 0002 其他用户可写 0001 其他用户可执行 nnnn 就是上列数字相加得到的，例如 chmod 0777 file 是指将文件 file 存取权限置为所有用户可读可写可执行。 -R 递归地改变所有子目录下所有文件的存取模式 u 文件主 g 同组用户 o 其他用户 a 所有用户 + 增加后列权限 - 取消后列权限 = 置成后列权限 r 可读 w 可写 x 可执行 s 运行时可置UID t 运行时可置GID [例子]: ＃chmod 0666 file1 file2 将文件 file1 及 file2 置为所有用户可读可写 ＃chmod u+x file 对文件 file 增加文件主可执行权限 ＃chmod o-rwx 对文件file 取消其他用户的所有权限 #chown [语法]: chown [-R] 文件主 文件… [说明]: 文件的UID表示文件的文件主，文件主可用数字表示， 也可用一个有效的用户名表示，此命令改变一个文件的UID，仅当此文件的文件主或超级用户可使用。 -R 递归地改变所有子目录下所有文件的存取模式 [例子]: #chown mary file 将文件 file 的文件主改为 mary #chown 150 file 将文件 file 的UID改为150 Ubuntu命令行下修改网络配置 以eth0为例 1. 以DHCP方式配置网卡 编辑文件/etc/network/interfaces: #sudo vi /etc/network/interfaces 并用下面的行来替换有关eth0的行: # The primary network interface - use DHCP to find our address auto eth0 iface eth0 inet dhcp 用下面的命令使网络设置生效: #sudo /etc/init.d/networking restart 当然,也可以在命令行下直接输入下面的命令来获取地址 #sudo dhclient eth0 2. 为网卡配置静态IP地址 编辑文件/etc/network/interfaces: #sudo vi /etc/network/interfaces 并用下面的行来替换有关eth0的行: # The primary network interface auto eth0 iface eth0 inet static address 192.168.3.90 gateway 192.168.3.1 netmask 255.255.255.0 network 192.168.3.0 broadcast 192.168.3.255 将上面的ip地址等信息换成你自己就可以了. 用下面的命令使网络设置生效: #sudo /etc/init.d/networking restart 3. 设定第二个IP地址(虚拟IP地址) 编辑文件/etc/network/interfaces: #sudo vi /etc/network/interfaces 在该文件中添加如下的行: auto eth0:1 iface eth0:1 inet static address 192.168.1.60 netmask 255.255.255.0 network x.x.x.x broadcast x.x.x.x gateway x.x.x.x 根据你的情况填上所有诸如address,netmask,network,broadcast和gateways等信息. 用下面的命令使网络设置生效: #sudo /etc/init.d/networking restart 4. 设置主机名称(hostname) 使用下面的命令来查看当前主机的主机名称: #sudo /bin/hostname 使用下面的命令来设置当前主机的主机名称: #sudo /bin/hostname newname 系统启动时,它会从/etc/hostname来读取主机的名称. 5. 配置DNS 首先,你可以在/etc/hosts中加入一些主机名称和这些主机名称对应的IP地址,这是简单使用本机的静态查询. 要访问DNS 服务器来进行查询,需要设置/etc/resolv.conf文件. 假设DNS服务器的IP地址是192.168.3.2, 那么/etc/resolv.conf文件的内容应为: search test.com nameserver 192.168.3.2 --------------------------------------安装AMP服务 -------------------------------------- 如果采用Ubuntu Server CD开始安装时，可以选择安装，这系统会自动装上apache2,php5和mysql5。下面主要说明一下如果不是安装的Ubuntu server时的安装方法。 用命令在Ubuntu下架设Lamp其实很简单，用一条命令就完成。在终端输入以下命令： #sudo apt-get install apache2 mysql-server php5 php5-mysql php5-gd #phpmyadmin 装好后，mysql管理员是root，无密码，通过http://localhost/phpmyadmin就可以访问mysql了 修改 MySql 密码 终端下输入： #mysql -u root #mysql> GRANT ALL PRIVILEGES ON *.* TO root@localhost IDENTIFIED BY “123456″; ’123456‘是root的密码，可以自由设置，但最好是设个安全点的。 #mysql> quit; 退出mysql apache2的操作命令 启动：#sudo /etc/init.d/apache2 start 重启：#sudo /etc/init.d/apache2 restart 关闭：#sudo /etc/init.d/apache2 stop apache2的默认主目录：/var/www/
Azure / Aca Java Runtimes WorkshopHost the code and the documentation of the Azure Container Apps workshop for Java runtimes (Quarkus, Micronaut, Spring Boot)
praveenLT / Java Selenium Intercept NetworkA sample repo to help you intercept network with Selenium Java on LambdaTest cloud. Run your Java Selenium tests on LambdaTest platform.
