## Tcl8.6.15/Tk8.6.15 Documentation > Tcl C API, version 8.6.15 > Init

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### NAME

Tcl_Init — find and source initialization script

### SYNOPSIS

#include <tcl.h>
int
Tcl_Init(interp)

### ARGUMENTS

Tcl_Interp *interp (in)
  Interpreter to initialize.

### DESCRIPTION

Tcl_Init is a helper procedure that finds and sources the init.tcl script, which should exist somewhere on the Tcl library path.

Tcl_Init is typically called from Tcl_AppInit procedures.

### SEE ALSO

Tcl_AppInit, Tcl_Main

### KEYWORDS

application, initialization, interpreter
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