Tcl API Reference -- ns_ftruncate

### ns_ftruncate

#### Overview

Truncate an open file to a specified length

#### Syntax

ns_ftruncate fileid ?length?

#### Description

ns_ftruncate causes the open file specified by fileid to have a size of length bytes. If length is not specified, it causes the file to have a size of zero bytes. The file must be open and be a regular file.

#### See Also

ns_truncate

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