Manual Pages for UNIX Operating System command usage for man eof

Tcl Built-In Commands                                     eof(1T)



_________________________________________________________________

NAME
     eof - Check for end of file condition on channel

SYNOPSIS
     eof channelId
_________________________________________________________________


DESCRIPTION
     Returns 1 if an end of file condition  occurred  during  the
     most  recent  input operation on channelId (such as gets), 0
     otherwise.

     ChannelId must be an identifier for an open channel such  as
     a  Tcl  standard  channel  (stdin,  stdout,  or stderr), the
     return value from an invocation of open or  socket,  or  the
     result  of  a  channel  creation  command  provided by a Tcl
     extension.

EXAMPLES
     Read and print out the contents of a file line-by-line:
          set f [open somefile.txt]
          while {1} {
              set line [gets $f]
              if {[eof $f]} {
                  close $f
                  break
              }
              puts "Read line: $line"
          }

     Read and print out the contents  of  a  file  by  fixed-size
     records:
          set f [open somefile.dat]
          fconfigure $f -translation binary
          set recordSize 40
          while {1} {
              set record [read $f $recordSize]
              if {[eof $f]} {
                  close $f
                  break
              }
              puts "Read record: $record"
          }


SEE ALSO
     file(1T),      open(1T),      close(1T),       fblocked(1T),
     Tcl_StandardChannels(3TCL)




Tcl                     Last change: 7.5                        1






Tcl Built-In Commands                                     eof(1T)



KEYWORDS
     channel, end of file

ATTRIBUTES
     See attributes(5) for descriptions of the  following  attri-
     butes:

     _______________________________________
    |   ATTRIBUTE TYPE   |  ATTRIBUTE VALUE|
    |____________________|__________________|_
    | Availability       |  runtime/tcl-8  |
    |____________________|__________________|_
    | Interface Stability|  Uncommitted    |
    |____________________|_________________|

NOTES
     Source for Tcl is available on http://opensolaris.org.






































Tcl                     Last change: 7.5                        2