05-20-2012
uniq duplicates solution fix
No - no, I thank you for the solution - and I think you miss the irony - to use the uniq command for unique results one is require to presort the input.
What self respecting computer scientist would ever make such a 1/2 assed implementation without a full disclosure for the Big O tradeoff / duplicate results and offer a switch for the slower, yet accurate version of uniq -c is beyond me.
Everyone:
if you have duplicates in uniq -c - this is a feature, not a bug, since the lines must be ADJACENT to be considered.
If you want your expected results, first sort, then uniq, then sort again.
May the google duplicate uniq sort fix solution find you
thanks to mirni - I owe you a vBeer.
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LEARN ABOUT OPENSOLARIS
pid
pid(1T) Tcl Built-In Commands pid(1T)
__________________________________________________________________________________________________________________________________________________
NAME
pid - Retrieve process identifiers
SYNOPSIS
pid ?fileId?
_________________________________________________________________
DESCRIPTION
If the fileId argument is given then it should normally refer to a process pipeline created with the open command. In this case the pid
command will return a list whose elements are the process identifiers of all the processes in the pipeline, in order. The list will be
empty if fileId refers to an open file that isn't a process pipeline. If no fileId argument is given then pid returns the process identi-
fier of the current process. All process identifiers are returned as decimal strings.
EXAMPLE
Print process information about the processes in a pipeline using the SysV ps program before reading the output of that pipeline:
set pipeline [open "| zcat somefile.gz | grep foobar | sort -u"]
# Print process information
exec ps -fp [pid $pipeline] >@stdout
# Print a separator and then the output of the pipeline
puts [string repeat - 70]
puts [read $pipeline]
close $pipeline
SEE ALSO
exec(1T), open(1T)
KEYWORDS
file, pipeline, process identifier
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 7.0 pid(1T)