| ActiveTcl User Guide |

### Tcl >> Tcl Built-In Commands >> Input and Output

Input and Output
    chan - Read, write and manipulate channels
    close - Close an open channel
    eof - Check for end of file condition on channel
    fblocked - Test whether the last input operation exhausted all available input
    fconfigure - Set and get options on a channel
    fcopy - Copy data from one channel to another
    file - Manipulate file names and attributes
    fileevent - Execute a script when a channel becomes readable or writable
    flush - Flush buffered output for a channel
    gets - Read a line from a channel
    open - Open a file-based or command pipeline channel
    puts - Write to a channel
    read - Read from a channel
    refchan - Command handler API of reflected channels, version 1
    seek - Change the access position for an open channel
    socket - Open a TCP network connection
    tell - Return current access position for an open channel

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    Copyright © 1990-1994 The Regents of the University of California
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    Copyright © 1992-1999 Karl Lehenbauer and Mark Diekhans.
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