OPEN(1) BSD General Commands Manual OPEN(1)
NAME
open -- open files and directories
SYNOPSIS
open [-e] [-t] [-f] [-W] [-n] [-g] [-h] [-b bundle_identifier] [-a application] file ...
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 directory. 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_indentifier
Specifies the bundle identifier for the application to use when opening 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 determined 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.
-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 vari-able. variable.
able.
-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.
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 applica-tion application
tion 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 -a Xcode -h NSString.h" quickly opens /System/Library/Frameworks/Foundation.framework/Head-
ers/NSString.h in Xcode.
HISTORY
First appeared in NextStep.
Mac OS X February 10, 2004 Mac OS X
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