• 打开文件 或url（用默认应用程序）： $ open fileName
• 打开文件 或url（用指定应用程序）： $ open -a appName fileName ## appName 中若有空格，则用引号" 括起来
• 打开Finder，定位到当前位置: $ open 'curDir' ## PS: curDir 一定要用引号括起来 ， open . # 表示Finder打开当前文件夹

OPEN(1) BSD General Commands Manual OPEN(1)

NAME

open - open files and directories

SYNOPSiS

open [-e] [-t] [-f] [-F] [-W] [-R] [-n] [-g] [-h] [-s _sdk]

[-b bundle_identifier] [-a application] _file. [-args arg1 …]

DESCRIPTION

The open command opens a file (or a directory or URL), just as if you had

double-clicked the file's icon. If no application name is specified, the

default application as determined via LaunchServices is used to open the

specified files.

 If the file is in the form of a URL, the file will be opened as a URL.

 You can specify one or more file names (or pathnames), which are interpreted relative to the shell or Terminal window's current working direc-
 tory. For example, the following command would open all Word files in the
 current working directory:

 open *.doc

 Opened applications inherit environment variables just as if you had
 launched the application directly through its full path.  This behavior
 was also present in Tiger.

 The options are as follows:

 -a application
     Specifies the application to use for opening the file

 -b bundle_identifier
     Specifies the bundle identifier for the application to use when open-
     ing the file

 -e  Causes the file to be opened with /Applications/TextEdit

 -t  Causes the file to be opened with the default text editor, as deter-
     mined via LaunchServices

 -f  Reads input from standard input and opens the results in the default
     text editor.  End input by sending EOF character (type Control-D).
     Also useful for piping output to open and having it open in the
     default text editor.

 -F  Opens the application "fresh," that is, without restoring windows.
     Saved persistent state is lost, except for Untitled documents.

 -W  Causes open to wait until the applications it opens (or that were
     already open) have exited.  Use with the -n flag to allow open to
     function as an appropriate app for the $EDITOR environment variable.

 -R  Reveals the file(s) in the Finder instead of opening them.

 -n  Open a new instance of the application(s) even if one is already running.

 -g  Do not bring the application to the foreground.

 -h  Searches header locations for a header whose name matches the given
     string and then opens it.  Pass a full header name (such as NSView.h)
     for increased performance.

 -s  For -h, partial or full SDK name to use; if supplied, only SDKs whose
     names contain the argument value are searched. Otherwise the highest
     versioned SDK in each platform is used.

 -args
   All remaining arguments are passed to the opened application in the
     argv parameter to main().  These arguments are not opened or interpreted by the open tool.

EXAMPLES

  "open '/Volumes/Macintosh HD/foo.txt'" opens the document in the default application for its type (as determined by LaunchServices).
  "open '/Volumes/Macintosh HD/Applications/'" opens that directory in the Finder.
  "open -a /Applications/TextEdit.app '/Volumes/Macintosh HD/foo.txt'"
 opens the document in the application specified (in this case, TextEdit).

 "open -b com.apple.TextEdit '/Volumes/Macintosh HD/foo.txt'" opens the
 document in the application specified (in this case, TextEdit).

 "open -e '/Volumes/Macintosh HD/foo.txt'" opens the document in TextEdit.

 "ls | open -f" writes the output of the 'ls' command to a file in /tmp
 and opens the file in the default text editor (as determined by LaunchServices).

 "open http://www.apple.com/" opens the URL in the default browser.

 "open 'file://localhost/Volumes/Macintosh HD/foo.txt'" opens the document
 in the default application for its type (as determined by LaunchServices).

 "open 'file://localhost/Volumes/Macintosh HD/Applications/'" opens that
 directory in the Finder.

 "open -h NSView" lists headers whose names contain NSView and allows you
 to choose which ones to open.

 "open -h NSView -s OSX10.12" lists headers whose names contain NSView in
 the MacOSX 10.12 SDK and allows you to choose which ones to open.

 "open -a Xcode -h NSString.h" quickly opens /System/Library/Frameworks/Foundation.framework/Headers/NSString.h in Xcode.



HISTORY
     First appeared in NextStep.

Mac OS X                       February 10, 2004                      Mac OS X