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yq is a lightweight and portable command-line CSV processor.
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eof(1t) [opensolaris man page]

eof(1T) 						       Tcl Built-In Commands							   eof(1T)


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) KEYWORDS
channel, end of file ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +--------------------+-----------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +--------------------+-----------------+ |Availability | SUNWTcl | +--------------------+-----------------+ |Interface Stability | Uncommitted | +--------------------+-----------------+ NOTES
Source for Tcl is available on Tcl 7.5 eof(1T)

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