terminal commands to clean up mac

Mac users know that every time the computer is turned on or restarted, there will be a very special boot tone. If you want to temporarily prohibit the start-up tone, one way is to always hold down the keyboard mute button, of course you can also use the following method of using terminal commands:By Spotlight Search and open the [terminal] program, then enter the

user Write username PTS/1 Mesg Allow or deny receiving of messages MESG N Korn shell command command name function Description Examples of Use History List several recently executed commands and numbers History R Repeatedly executes a command that has been recently executed R-2 Alias To define an alias for a

First, delete the file1 Opening the terminal application2 Input command: sudo (space) RM (space)-R (Space)-F (space) (note that there are spaces behind-f), also note that all lowercase.3 Drag the file or folder you want to delete into the terminal window with mouse, and many can also be dragged together.4 then enter in the terminal.5 Enter the current administrat

the system, if you want to configure something, such as the Android development environment in the SDK to add the directory, do not configure the words will not be added.Export android_sdk_root= "/USERS/WANGKAI/DOCUMENTS/ADT-BUNDLE-MAC-X86_64-20130219/SDK"I saved these 4 references in my command line 6, to save the full selection: Command+s or not at ease, select the Notepad file-save save after saving no prompt to directly turn off. 7, at this point

the original unchanged working copy file (restores most of the local modifications). Revert:2 usage: revert PATH ... 3 Note: The book command will not access the network and will release the conflicting conditions. But it will not recover 4 of the deleted directories16. Code Base URL Change1 svn switch (SW): Updates the working copy to a different URL. 2 usage: 1, switch URL [path] 3 2, switch–relocate from to [path ...] 4 5 1, update your working copy, map to a new URL, its behavior is simil

Today, a small study of the Mac terminal commands, mainly for the convenience of debugging programs, Xcode do not come ah ...Make a note here. Prevent lossPWD Current Working directoryCD (without parameters) into rootCD (folder) access to foldersCd.. Parent Directorycd ~ Back to RootCD-Returns the last visited directoryRM File name DeleteCat file name (|less) to

| 使用举例 ---------|---------------------------|------------------ uname | 显示操作系统的有关信息 | uname -a clear | 清除屏幕或窗口内容 | clear env | 显示当前所有设置过的环境变量 | env who | 列出当前登录的所有用户 | who whoami | 显示当前正进行操作的用户名 | whoami tty | 显示终端或伪终端的名称 | tty stty | 显示或重置控制键定义 | stty -a du | 查询磁盘使用情况 | du -k subdir df | 显示文件系统的总空间和可用空间 | df w | 显示当前系统活动的总信息

Link Address: http://www.cnblogs.com/wangrui-techbolg/archive/2012/12/29/2839047.htmlSince the MAC is already installed in the Java environment, it is convenient to run the Java command directly from the class.Compile a Java file: javac/users/username/desktop/helloworld.java (after running will get a Helloworld.class file, store directory in Desktop)Run: First to CD to Helloworld.class directory, then: Java HelloWorld (HelloWorld is the class name wit

Since the MAC is already installed in the Java environment, it is convenient to run the Java command directly from the class.Compile a Java file: javac/users/username/desktop/helloworld.java (after running will get a Helloworld.class file, store directory in Desktop)Run: First to CD to Helloworld.class directory, then: Java HelloWorld (HelloWorld is the class name without suffix).Add editsRecently look at the design pattern, the inside of the code is

Check which directory is currently in PWDJump to which directory, remember CD is the meaning of change directoryJump Directory CD Directory nameJump to home directory CD ~Skip to the top level directory CD.Jump root directory CD/Returns the directory CD for the last actionNew directory mkdir directory nameSee which folders are in the current directory LSRemove directory rmdir directory nameGet root Permissions sudo　　　　Mac comes with

Displays the name of the terminal or pseudo terminal Tty Stty Display or reset control key definitions Stty-a Du Querying disk usage Du-k SubDir Df Displays the total and free space of the file system Df/tmp W Displays the total information for the current system activity W Wen/kekemars

Step1. Enter in Terminal: Export path= "/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/x11/bin" then the command can be used temporarily, Step2. open-e ~/.bash_profile Open the. bash_profile file in a text editor: Step3. Change the PATH environment variable setting, add this line, export path= "/usr/bin:/bin:/ Usr/sbin:/sbin:/usr/local/bin:/usr/x11/bin "It's no problem to save it again.Workaround for Mac

MAC Terminal statementNumber of words Read 111 comments 3 likes 3 PWD Current Working directoryCD (without parameters) into rootCD (path name) into the folderCd.. Parent Directorycd ~ Back to RootCD-Returns the last visited directoryRM File name DeleteCat file name (|less) to view files under TerminalLS lists all files in the directoryCP file name destination directory copy files to target directory~ stan

Command name Function description Application examples Cat Show or connect files Cat filename Od Display the contents of a non-text file od-c filename Cp Copy a file or directory CP file1 File2 Rm Delete a file or directory RM filename Mv Change the file name or directory MV File1 File2 Find Finding files using matching expressions

simplify some of the longer commands. When using this directive, the user must use single quotation marks to "cause the original command to be used to prevent special characters from causing an error. The function of the instruction is limited to the operation of the login. To be able to use these command aliases every time you log in, you can store the alias command in Bash's initialization file "~/.bash_profile". 6. View the command alias's origina

How does a Mac command line terminal Create a file? It's really easy to create a large-capacity blank file in a Mac OS X system. This article small Lego for you to introduce two kinds of file creation tutorial, the first is to use the MAC command line terminal to create the

terminal when it is started. In Terminal input: cd ~ Vim./bash_profile This file is modified if the Android development environment has been configured. We add 2 lines Alias Mysql=/usr/local/mysql/bin/mysql Alias Mysqladmin=/usr/local/mysql/bin/mysqladmin Save exit, restart Terminal or open a new window Alias directive: Setting command aliases Alias:usage:alias

the terminal when it is started. In Terminal input: cd ~ Vim./bash_profile This file is modified if the Android development environment has been configured. We add 2 lines Alias Mysql=/usr/local/mysql/bin/mysql Alias Mysqladmin=/usr/local/mysql/bin/mysqladmin Save exit, restart Terminal or open a new window Alias directive: Setting command aliases Alias:usage:a

Recently learning Apple's certified MAC OS X support Essentials tutorial, see Command Line section has a lot of practical knowledge, below Select a part of translation + notes, organized into this article. You can drive cars all day without knowing how to fix them, but if you want to be a maintainer, you need to know how things work. The same thing happens on Mac OS X; You can always use your

the mouse and you are already copied. There's no need to press the COMMAND+C command."2. Screen separation"This is my favorite iTerm2 function, separated into multiple screens, as long as your computer's screen is large enough to want to divide the number of screens can be. You can do command-line operations at the same time, rather than just one screen, because one command or network download is blocked, and you cannot execute other commands. If you