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Full Discussion: using join command for files
Special Forums Hardware Filesystems, Disks and Memory using join command for files Post 26250 by Nisha on Wednesday 14th of August 2002 01:56:58 AM
Old 08-14-2002
Peter,

The above code is working perfectly...

I have heard of IFS(Internal Field Seperator)... Could you please tell me what OFS is????

And also i am new to this join command....

can u explain this to me....

join -t "," -j1 1 -j2 1 -o 1.2 1.3 1.4 1.5 2.4 temp_File_one temp_File_two

The join command works even like this..

join -t "," -o 1.2 1.3 1.4 1.5 2.4 temp_File_one temp_File_two


A few other questions...

1. Why do i need two temp files at all??
2. Why can't I directly join the file_one and file_two?
3. Why should there be a statement like this ?
BEGIN { OFS = "," } { print $1 $2, $1, $2, $3 ,$4 }
instead of
BEGIN { OFS = "," } { print $1, $2, $3 ,$4 }

Thanks,
Nisha

Last edited by Nisha; 08-14-2002 at 03:19 AM..
 

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

__________________________________________________________________________________________________________________________________________________

NAME
join - Create a string by joining together list elements SYNOPSIS
join list ?joinString? _________________________________________________________________ DESCRIPTION
The list argument must be a valid Tcl list. This command returns the string formed by joining all of the elements of list together with joinString separating each adjacent pair of elements. The joinString argument defaults to a space character. EXAMPLES
Making a comma-separated list: set data {1 2 3 4 5} join $data ", " => 1, 2, 3, 4, 5 Using join to flatten a list by a single level: set data {1 {2 3} 4 {5 {6 7} 8}} join $data => 1 2 3 4 5 {6 7} 8 SEE ALSO
list(1T), lappend(1T), split(1T) KEYWORDS
element, join, list, separator 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 http://opensolaris.org. Tcl join(1T)
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