UNIX is a multi-user multitasking-optimized operating system that can run on various hardware platforms. Linux is basically an open-source clone of UNIX,而Unix的所有components都来自于同一个vendor,所以更稳定. A shell in the world of computers refers to a program that…

UNIX or Linux operating system has become default Server operating system and for whichever programming job you give interview you find some UNIX command interview questions there. These UNIX command interview questions are mostly asked during Java d…

plink_path = "C:/plink.exe"     'plink.exe 路径 username = "username"       '用户名 password = "password"       '密码 host = "192.168.0.1"        'Unix/Linux服务器地址 command = "ls"                  '要执行的命令 Set oShel…

free displays the total amount of free and used memory free [options] top provides a dynamic real-time view of a running system top [options] ps provides snapshot of the status of currently running processes ps [options] kill sends a signal to a proc…

在使用Linux/UNIX下,常常会使用文本界面去设置系统或操作系统,作者本人在工作的过程也在不断接触这方面的命令,所以为此特酝酿.准备.開始了本文的编写. 本文主要记录自己平时遇到的一些Linux/UNIX下操作命令,记录与整理一下,一可加深印象.二可记录分享. 希望各位看官.对于不合适的或有歧义的地方,给予指明与说明,以便共同学习与提高. [转载使用,请注明出处:http://blog.csdn.net/mahoking] 023 kill命令:查看进程及杀死进程 查看进程使用ps命令,本例…

http://linux.about.com/library/cmd/blcmdl1_bunzip2.htm NAME bzip2, bunzip2 - a block-sorting file compressor, v1.0.2 bzcat - decompresses files to stdout bzip2recover - recovers data from damaged bzip2 files SYNOPSIS bzip2 [ -cdfkqstvzVL123456789 ] […

在使用Linux/UNIX下,常常会使用文本界面去设置系统或操作系统,作者本人在工作的过程也在不断接触这方面的命令,所以为此特酝酿.准备.開始了本文的编写.本文主要记录自己平时遇到的一些Linux/UNIX下操作命令,记录与整理一下,一可加深印象,二可记录分享.希望各位看官,对于不合适的或有歧义的地方,给予指明与说明,以便共同学习与提高. [转载使用,请注明出处:http://blog.csdn.net/mahoking] 017Linux cp命令 1 命令格式        cp [选项]…

正在使用Linux/UNIX下一个.经常使用文本界面来设置系统或操作系统,笔者也是在指挥这方面工作的过程中不断的接触.因此,为了此特酝酿.准备.開始了本文的编写.本文主要记录自己平时遇到的一些Linux/UNIX下操作命令,记录与整理一下.一可加深印象.二可记录分享.希望各位看官,对于不合适的或有歧义的地方.给予指明与说明,以便共同学习与提高. [转载使用.请注明出处:http://blog.csdn.net/mahoking] 014Linux chmod命令 1 命令格式 chmod [选项…

yum install lrzsz Most communications programs invoke rz and sz automatically. You can also connect to a remote system, log in, and manually invoke sz with the flags you want to use. Zmodem automatically downloads the files to your home system using…

Use telnet command The syntax is:telnet {host} {port}telnet www.cyberciti.biz 80telnet 192.168.2.254 80Sample outputs: Trying 192.168.2.254... Connected to router. Escape character is '^]'. ^] telnet> q Connection closed. To close your session, press…

cat displays the contents of a file at the command line copies or apppend text file into a document cat [OPTIONS] .. [FILE] head prints the first part of the files head [ OPTION] … [FILE] tail prints the last part of files tail [OPTION] … [FILE] … mo…

File System Function In computing, a file system or filesystem is used to control how data is stored and retrieved. Without a file system, information placed in a storage medium would be one large body of data with no way to tell where one piece of i…

 http://man.linuxde.net/grep ---------------------------------------------------- 如何使用Unix/Linux grep命令——磨刀不误砍柴工系列 标签: 正则表达式commandlinuxshellunix 2012-07-11 18:40 7550人阅读 评论(0) 收藏 举报  分类: linux/Ubuntu(6)  版权声明:本文为博主(微博@Gary的影响力)原创文章,未经博主允许不得转载.博客地址:h…

Oracle UNIX/Linux Tips by Burleson Consulting Semaphores and Oracle 11g 信号量和数据库 Semaphores are data structures within the operating system that function like signals for memory process communications. For Oracle, semaphores tell the Oracle processes…

Hyperpolyglot Unix Shells: Bash, Fish, Ksh, Tcsh, Zsh grammar | quoting and escaping | charactersvariables | variable expansion | brace, tilde, command, and pathname expansion | special variablesarithmetic and conditional expressionsarrays | associat…

Linux/Unix 新手和专家教程 你正在找一些高质量的Linux 和 UNIX 的教程吗?如果是,这篇文章会告诉你到哪去找到这些教程.这里我们将给出超过30个相当的不错的 Linux 和 UNIX 在线的教程. 需要大家注意的是,他们都是英文的,也许有一些也经被翻译到了中文社区,你可以搜索一下.但不管怎么样,我的建议是应该尽可能的去阅读英文. Linux 和UNIX 的新手培训教程 免费的新手Linux教程 Introduction to Linux – 这是来自IBM的教程,用于给那些想学…

You need to install the command line tools as marked in your message: ✖ Xcode Command Line Tools are NOT installed From osxDaily: Launch the Terminal, found in /Applications/Utilities/ Type the following command string: xcode-select --install A softw…

Summary Step 1. Upgrade Your System to macOS Sierra Step 2. Open the Terminal Application Step 3. Is XCode Already Installed? Step 4. Enter Commands Step 5. Install XCode Command Line Tools Step 6. Verify Installation MacOS Sierra To install the newe…

你正在找一些高质量的Linux 和 UNIX 的教程吗?如果是,这篇文章会告诉你到哪去找到这些教程.这里我们将给出超过30个相当的不错的 Linux 和 UNIX 在线的教程. 需要大家注意的是,他们都是英文的,也许有一些也经被翻译到了中文社区,你可以搜索一下.但不管怎么样,我的建议是应该尽可能的去阅读英文. Linux 和UNIX 的新手培训教程 免费的新手Linux教程 Introduction to Linux – 这是来自IBM的教程,用于给那些想学习Linux的人. Linux Des…

SP2-0734: unknown command beginning "lsnrctl st..." - rest of line ignored. Cause(原因):Command was being entered as an SQL command.在SQL命令窗口输入命令.Resolution(解决方法):Perform the command from the unix command line as the oracle user, that is, do "…

How to Install Command Line Tools in OS X Mavericks & Yosemite (Without Xcode) Mac users who prefer to have a more traditional Unix toolkit accessible to them through the Terminal may wish to install the optional Command Line Tools subsection of the…

参考: http://www.cyberciti.biz/faq/linux-unix-bsd-xargs-construct-argument-lists-utility/ http://linux.101hacks.com/linux-commands/xargs-command-examples/ http://www.computerhope.com/unix/xargs.htm http://offbytwo.com/2011/06/26/things-you-didnt-know-a…

转自http://get.jobdeer.com/493.get 1. tar command examples Create a new tar archive. $ tar cvf archive_name.tar dirname/ Extract from an existing tar archive. $ tar xvf archive_name.tar View an existing tar archive. $ tar tvf archive_name.tar More tar…

by Daniel Kehoe Last updated 28 December 2013 How to install Apple Xcode Command Line Tools for Mac OS X 10.9 Mavericks. Xcode is a large suite of software development tools and libraries from Apple. The Xcode Command Line Tools are part of XCode. In…

Docker 是一个开源的轻量级容器项目,用于让你的应用在它上面打包.集装和运行.Docker 运行的环境既包含未知硬件也包含未知操作系统.这句话的意思是它可以运行在任何地方,小到你的笔记本大到一个大型的云计算实体,除此之外也不需要你掌握或用到任何特定的开发语言.框架或者打包系统.这使得他们能够在不依赖任何特定堆栈或者提供者的情况下部署可扩展的web应用程序.数据库或者后台服务.Docker 的前身是dotCloud旗下的一款开源的部署引擎的实现,一款很受欢迎接口服务平台.它成功直接收益于积累了…

一份ORACLE DBA面试题 一:SQL tuning 类 1:列举几种表连接方式 答: Oracle的多表连接算法有Nest Loop.Sort Merge和Hash Join三大类,每一类又可以分为三小类. 以Nest Loop为例: 传统的Nest Loop连接: 针对In.Exists优化的Semi Nest Loop: 专门针对Not In.Not Exists优化的Anti Nest Loop. Semi/Anti *** Join这几种也叫半连接. (可以补充一下这三个连接的不同…

Xv6的lecture LEC 1 Operating systems   L1: O/S overview L1:O/S概述   * 6.828 goals 6.828的目标   Understand operating systems in detail by designing and implementing a small O/S 通过设计并实现一个小型的系统在细节上理解操作系统.   Hands-on experience with building systems("Applyin…

[TOC] 一,主机配置 1.修改hosts文件(两节点) #127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 crm-4g-nm-dahsxw1 #::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 crm-4g-nm-dahsxw1 127.0.0.1 localhost.localdomain lo…

安装完ORACEL 10g数据库后,启动数据库时遇到ORA-01102: cannot mount database in EXCLUSIVE mode [oracle@DB-Server ~]$ sqlplus / as sysdba   SQL*Plus: Release 10.2.0.1.0 - Production on Thu Apr 10 13:53:08 2014   Copyright (c) 1982, 2005, Oracle. All rights reserved.  …

http://linux.about.com/library/cmd/blcmdl1_sh.htm http://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html Linux / Unix Command: shCommand LibraryNAMEbash - GNU Bourne-Again SHell SYNOPSISbash [options] [file] DESCRIPTIONBash is an sh…