$ plistbuddy -h

Command Format:

    Help - Prints this information

    Exit - Exits the program, changes are not saved to the file

    Save - Saves the current changes to the file

    Revert - Reloads the last saved version of the file

    Clear [<Type>] - Clears out all existing entries, and creates root of Type

    Print [<Entry>] - Prints value of Entry.  Otherwise, prints file

    Set <Entry> <Value> - Sets the value at Entry to Value

    Add <Entry> <Type> [<Value>] - Adds Entry to the plist, with value Value

    Copy <EntrySrc> <EntryDst> - Copies the EntrySrc property to EntryDst

    Delete <Entry> - Deletes Entry from the plist

    Merge <file.plist> [<Entry>] - Adds the contents of file.plist to Entry

    Import <Entry> <file> - Creates or sets Entry the contents of file

Entry Format:

    Entries consist of property key names delimited by colons.  Array items

    are specified by a zero-based integer index.  Examples:

        :CFBundleShortVersionString

        :CFBundleDocumentTypes:2:CFBundleTypeExtensions

Types:

    string

    array

    dict

    bool

    real

    integer

    date

    data

Examples:

    Set :CFBundleIdentifier com.apple.plistbuddy

        Sets the CFBundleIdentifier property to com.apple.plistbuddy

    Add :CFBundleGetInfoString string "App version 1.0.1"

        Adds the CFBundleGetInfoString property to the plist

    Add :CFBundleDocumentTypes: dict

        Adds a new item of type dict to the CFBundleDocumentTypes array

    Add :CFBundleDocumentTypes:0 dict

        Adds the new item to the beginning of the array

    Delete :CFBundleDocumentTypes:0 dict

        Deletes the FIRST item in the array

    Delete :CFBundleDocumentTypes

        Deletes the ENTIRE CFBundleDocumentTypes array

用PlistBuddy修改Plist文件

原文：http://www.cnblogs.com/sytfyf/p/4521581.html