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Full Discussion: Gathering info on one line
Top Forums Shell Programming and Scripting Gathering info on one line Post 37607 by thehoghunter on Monday 23rd of June 2003 02:52:22 PM
Old 06-23-2003
You would have to write a script -
read line one - use cut or awk (or some other command to edit the line) to take the first four fields and compare saved line.

(Note, first line in file would not be compared just saved)
read line one
save as compareline
read line two
compare line two against saved line (first four fields only)
if the same, write/print saved line and last field of line two
else
write/print compareline
save line two as compare line
loop

This should work except for when line three is the same as line two...then you will end up with two lines that should have been one line with three different times.

I can't think of a command that will do it on it's own although some of the folks here can do amazing things with sed, awk, and others.
 

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LEARN ABOUT REDHAT

gets

gets(n) 						       Tcl Built-In Commands							   gets(n)

__________________________________________________________________________________________________________________________________________________

NAME

       gets - Read a line from a channel

SYNOPSIS

       gets channelId ?varName?
_________________________________________________________________

DESCRIPTION

       This command reads the next line from channelId, returns everything in the line up to (but not including) the end-of-line character(s), and
       discards the end-of-line character(s).  If varName is omitted the line is returned as the result of the command.  If varName  is  specified
       then the line is placed in the variable by that name and the return value is a count of the number of characters returned.

       If  end	of file occurs while scanning for an end of line, the command returns whatever input is available up to the end of file.  If chan-
       nelId is in nonblocking mode and there is not a full line of input available, the command returns an empty string and does not consume  any
       input.	If  varName is specified and an empty string is returned in varName because of end-of-file or because of insufficient data in non-
       blocking mode, then the return count is -1.  Note that if varName is not specified then the end-of-file	and  no-full-line-available  cases
       can produce the same results as if there were an input line consisting only of the end-of-line character(s).  The eof and fblocked commands
       can be used to distinguish these three cases.

SEE ALSO

       file(n), eof(n), fblocked(n)

KEYWORDS

       blocking, channel, end of file, end of line, line, nonblocking, read

Tcl									7.5								   gets(n)
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