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Text File | 1993-10-26 | 1.3 KB | 34 lines | [TEXT/$Tcl] |
-
- seek fileId offset ?origin?
-
-
- DESCRIPTION
- Change the current access position for fileId. FileId must
- have been the return value from a previous call to open, or
- it may be stdin, stdout, or stderr to refer to one of the
- standard I/O channels. The offset and origin arguments
- specify the position at which the next read or write will
- occur for fileId. Offset must be an integer (which may be
- negative) and origin must be one of the following:
-
- start
- The new access position will be offset bytes from the
- start of the file.
-
- current
- The new access position will be offset bytes from the
- current access position; a negative offset moves the
- access position backwards in the file.
-
- end The new access position will be offset bytes from the
- end of the file. A negative offset places the access
- position before the end-of-file, and a positive offset
- places the access position after the end-of-file.
-
- The origin argument defaults to start. This command returns
- an empty string.
-
-
- KEYWORDS
- access position, file, seek
-