07-17-2013
another question i had...i have a file without a file extension but can be opened in notepad. The file is 300 mb in size. it basically has multiple data sets in one file and i want to extract each of the data sets into a txt file. The remarks to identify each data set in the file are T0, P1, P2, P3, P4, P5, P6 and T9 that appear at the END of each record in the file and i want this file to be split into 8 different files where file 1 will have only records with T0 and file 2 with P1 and so on. There might be T0, P1 etc remarks in the middle of the line but the criteria to extract should be that these remarks are at the end of the row/line/record in the source file. source file name is RAW. Is there GREP command or any other command where I could use a IF then ELSE or a CASE statement
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eof(3tcl) Tcl Built-In Commands eof(3tcl)
__________________________________________________________________________________________________________________________________________________
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(3tcl), open(3tcl), close(3tcl), fblocked(3tcl), Tcl_StandardChannels(3tcl)
KEYWORDS
channel, end of file
Tcl 7.5 eof(3tcl)