source

source(n)                    Tcl Built-In Commands                   source(n)



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NAME
       source - Evaluate a file or resource as a Tcl script

SYNOPSIS
       source fileName

       source -encoding encodingName fileName
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DESCRIPTION
       This command takes the contents of the specified file or resource and
       passes it to the Tcl interpreter as a text script.  The return value
       from source is the return value of the last command executed in the
       script.  If an error occurs in evaluating the contents of the script
       then the source command will return that error.  If a return command is
       invoked from within the script then the remainder of the file will be
       skipped and the source command will return normally with the result
       from the return command.

       The end-of-file character for files is “\32” (^Z) for all platforms.
       The source command will read files up to this character.  This
       restriction does not exist for the read or gets commands, allowing for
       files containing code and data segments (scripted documents).  If you
       require a “^Z” in code for string comparison, you can use “\032” or
       “\u001a”, which will be safely substituted by the Tcl interpreter into
       “^Z”.

       A leading BOM (Byte order mark) contained in the file is ignored for
       unicode encodings (utf-8, unicode).

       The -encoding option is used to specify the encoding of the data stored
       in fileName.  When the -encoding option is omitted, the system encoding
       is assumed.

EXAMPLE
       Run the script in the file foo.tcl and then the script in the file
       bar.tcl:

              source foo.tcl
              source bar.tcl

       Alternatively:

              foreach scriptFile {foo.tcl bar.tcl} {
                  source $scriptFile
              }

SEE ALSO
       file(n), cd(n), encoding(n), info(n)

KEYWORDS
       file, script



Tcl                                                                  source(n)