1eof(n)                       Tcl Built-In Commands                      eof(n)
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NAME

8       eof - Check for end of file condition on channel
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SYNOPSIS

11       eof channelId
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DESCRIPTION

16       Returns  1  if an end of file condition occurred during the most recent
17       input operation on channelId (such as gets), 0 otherwise.
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19       ChannelId must be an identifier for an open channel such as a Tcl stan‐
20       dard channel (stdin, stdout, or stderr), the return value from an invo‐
21       cation of open or socket, or the result of a channel  creation  command
22       provided by a Tcl extension.
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EXAMPLES

25       Read and print out the contents of a file line-by-line:
26              set f [open somefile.txt]
27              while {1} {
28                  set line [gets $f]
29                  if {[eof $f]} {
30                      close $f
31                      break
32                  }
33                  puts "Read line: $line"
34              }
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36       Read and print out the contents of a file by fixed-size records:
37              set f [open somefile.dat]
38              fconfigure $f -translation binary
39              set recordSize 40
40              while {1} {
41                  set record [read $f $recordSize]
42                  if {[eof $f]} {
43                      close $f
44                      break
45                  }
46                  puts "Read record: $record"
47              }
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SEE ALSO

51       file(n), open(n), close(n), fblocked(n), Tcl_StandardChannels(3)
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KEYWORDS

55       channel, end of file
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59Tcl                                   7.5                               eof(n)