Accessing Unwrapped Files

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If your wrapped application attempts to access unwrapped files using relative pathnames, it runs the risk of accidentally accessing a file in the internal archive instead (that is, file shadowing). To ensure that your application always accesses unwrapped files when desired, you should always use absolute pathnames in a wrapped application.

In particular, you should be careful in how your application handles cases where a user can enter a file name. If a user enters a relative pathname for a file, you should convert it to an absolute pathname. For example, if the variable path contains a relative file name, you can create an absolute file name by appending it to the current working directory:

set path [file join [pwd] $path]

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