Apple AppleScript Finder Guide User Manual Page 130
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CHAPTER 3
Finder Commands
118 Command Definitions
Exists 3
An Exists command is a request to determine whether the object specified by a
reference exists. The Finder version of the Exists command is identical to the
standard version described in the AppleScript Language Guide.
SYNTAX
exists referenceToObject
referenceToObject exists
PARAMETER
referenceToObject
A reference to the object to find or a list of references.
Class: Reference or list of references
RESULT
A Boolean value. If true, all of the objects referred to by referenceToObject exist.
If false, one or more of the objects referred to by referenceToObject do not exist.
EXAMPLE
This script checks whether a disk named Storage is mounted and, if it is, copies
all files from the folder Correspondence whose modification dates are more
than 30 days old to disk Storage and deletes the originals.
tell application "Finder"
if exists disk "Storage" then
set aMonthAgo to (current date) - (30 * days)
copy (every item in folder "Correspondence" of startup disk ¬
whose modification date < aMonthAgo) ¬
to folder "Old Letters" of disk "Storage"
delete (every item in folder "Correspondence" of startup disk ¬
whose modification date < aMonthAgo)
- AppleScript Finder Guide 1
- Contents 3
- Finder Errors 6
- Tables and Listings 7
- About This Guide 9
- For More Information 0 10
- Other AppleScript Dialects 0 11
- Installation 1 13
- What Is Finder Scripting? 1 14
- What Is Finder Scripting? 3 15
- What Is Finder Scripting? 16
- CHAPTER 1 17
- Finder Objects 2 27
- Element Classes 2 28
- Commands Handled 2 29
- Examples 2 29
- The Finder Application Object 30
- Object Class Definitions 2 38
- Accessory Suitcase 2 39
- Alias File 2 40
- Object Class Definitions 29 41
- Application 2 43
- Object Class Definitions 33 45
- Object Class Definitions 35 47
- Object Class Definitions 37 49
- Application File 2 50
- Object Class Definitions 39 51
- Application Process 2 53
- Container 2 55
- Object Class Definitions 45 57
- Container Window 2 59
- Object Class Definitions 49 61
- Content Space 2 62
- Control Panel 2 63
- Object Class Definitions 53 65
- Desk Accessory File 2 67
- Desktop-Object 2 68
- Object Class Definitions 57 69
- Object Class Definitions 59 71
- Document File 2 72
- Object Class Definitions 61 73
- Folder 2 75
- Font File 2 77
- Font Suitcase 2 78
- Object Class Definitions 67 79
- Information Window 2 81
- Object Class Definitions 71 83
- Object Class Definitions 73 85
- Object Class Definitions 75 87
- Process 2 89
- Sharable Container 2 91
- Object Class Definitions 81 93
- Sharing Privileges 2 95
- Sharing Window 2 97
- Object Class Definitions 87 99
- Sound File 2 100
- Status Window 2 101
- Suitcase 2 102
- Trash-Object 2 103
- Finder Objects 104
- Object Class Definitions 104
- Object Class Definitions 93 105
- Window 2 107
- Object Class Definitions 97 109
- Finder Commands 3 111
- Parameters 3 112
- Command Definitions 3 113
- Finder Commands 114
- Command Definitions 114
- Command Finder version 114
- Command Definitions 103 115
- Command Summary 115
- Clean Up 3 116
- Command Definitions 105 117
- Computer 3 119
- Command Definitions 109 121
- Data Size 3 123
- Delete 3 125
- Duplicate 3 126
- Command Definitions 115 127
- Command Definitions 117 129
- Exists 3 130
- Command Definitions 119 131
- Command Definitions 121 133
- Command Definitions 123 135
- Command Definitions 125 137
- Put Away 3 139
- Command Definitions 129 141
- Restart 3 142
- Reveal 3 143
- Select 3 144
- Command Definitions 133 145
- Shut Down 3 146
- Command Definitions 135 147
- Update 3 149
- Appendixes 151
- Finder Commands at a Glance A 153
- Finder Commands at a Glance 154
- Commands 154
- Command Syntax Result 154
- Commands 143 155
- Placeholders A 157
- Finder Errors B 159
- DEVELOPMENTAL EDITOR 168
- PRODUCTION EDITOR 168
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