Tcl/Tk in a Nutshell

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Name

overlay

overlay [-# spawn_id...] program [args]

Execute program program and optional arguments in place of the current Expect program. Spawn IDs can be mapped to file identifiers for the new process by specifying file number and spawn ID pairs.

Example

overlay −0 $spawn_id −1 $spawn_id −2 $spawn_id emacs

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