---
CommandName: fileevent
ManualSection: n
Version: 7.5
TclPart: Tcl
TclDescription: Tcl Built-In Commands
Links:
- chan(n)
Copyright:
- Copyright (c) 1994 The Regents of the University of California.
- Copyright (c) 1994-1996 Sun Microsystems, Inc.
- Copyright (c) 2008 Pat Thoyts
---
# Name
fileevent - Execute a script when a channel becomes readable or writable
# Synopsis
::: {.synopsis} :::
[fileevent]{.cmd} [channel]{.arg} [readable]{.lit} [script]{.optarg}
[fileevent]{.cmd} [channel]{.arg} [writable]{.lit} [script]{.optarg}
:::
# Description
The **fileevent** command has been superceded by the **chan event** command which supports the same syntax and options.