Calling Command-Line Tools
Platypus is a Mac OS X developer tool that creates native Mac OS X applications from interpreted scripts such as shell scripts or Perl, Ruby and Python programs. This is done by wrapping the script in an application bundle along with a native executable binary that runs the script. Apple-script is probably what you're looking for. Some applications have extensive support for Apple-script, whether made by Apple or not. Apple-script can also run shell scripts with the: do shell script ' command. In the Apple-script Editor there are templates for folder manipulation. Apple-scripts can also be saved as Applications.
In AppleScript, the
do shell script
command is used to execute command-line tools. This command is implemented by the Standard Additions scripting addition included with OS X.Note Freecad mac manual.
The Terminal app in
/Applications/Utilities/
is scriptable and provides another way to execute command-line tools from scripts. Shell Script Editor Mac Os X
Executing Commands
![Scripting Scripting](/uploads/1/1/6/7/116785853/978325617.jpg)
The direct parameter of the
do shell script
command is a string containing the shell code you want to execute, as demonstrated in Listing 39-1, which simply lists a directory.APPLESCRIPT
Listing 39-1AppleScript: Executing a simple shell command that lists the contents of a directorydo shell script 'ls /Applications/'
(*
--> Result:
'App Store.app
Automator.app
Calculator.app
Calendar.app
..'
*)
Since the direct parameter of
do shell script
is a string, you can concatenate it with other strings at run time. Listing 39-2, for example, concatenates a shell command to a previously defined parameter value.APPLESCRIPT
Listing 39-2AppleScript: Concatenating a command with a valueset theHostName to 'www.apple.com'
do shell script 'ping -c1 ' & theHostName
Quoting Strings
The shell uses space characters to separate parameters and gives special meaning to certain punctuation marks, such as
$
, (
, )
, and *
. To ensure that strings are treated as expected—for example, spaces aren’t seen as delimiters—it’s best to wrap strings in quotes. This process is known as quoting. If your string contains quotes, they must also be escaped (preceded by a /
character) so they are interpreted as part of the string. Listing 39-3 shows an example of an error occurring as a result of a parameter that contains a space.APPLESCRIPT
Listing 39-3AppleScript: An error resulting from a string containing a spaceset thePath to '/Library/Application Support/'
do shell script 'ls ' & thePath
--> Result: error 'ls: /Library/Application: No such file or directoryrls: Support: No such file or directory' number 1
The easiest way to quote a string is to use the
quoted form
property of the text class, as demonstrated in Listing 39-4. This property returns the string in a form that’s safe from further interpretation by the shell, regardless of its contents.APPLESCRIPT
Listing 39-4AppleScript: Quoting a string to prevent errorsset thePath to quoted form of '/Library/Application Support/'
--> Result: '/Library/Application Support/'
do shell script 'ls ' & thePath
(*
--> Result:
'App Store
Apple
..
'
*)
Script Editor Mac Os X Download
More Information
For more information about the
do shell script
command, see Commands Reference in AppleScript Language Guide and Technical Note TN2065.Copyright © 2018 Apple Inc. All rights reserved. Terms of Use | Privacy Policy | Updated: 2016-06-13 B. adobe illustratormr. mac's virtual existence date.