Shell Programming and Scripting

hi all,
is there a storage structure in ksh which only allows unique values i.e overwrites duplicates values ??

am using an array to hold server names from a 'find' command but some of the names are repeated. Is there an easy way to remove the duplicates ??


ta.

try..

Code:

find *some* | uniq

Just a short note - "uniq" works on sorted output. Unless that "find" command returns sorted output, uniq will not work.

Code:

$ 
$ # find all server names
$ find . -name "*" -type f
./s3
./d1/s1
./d2/s3
./s1
./s2
$ 
$ # just the server names; without path
$ find . -name "*" -type f | sed 's/.*\///'
s3
s1
s3
s1
s2
$ 
$ # unsorted output - uniq does not work on this
$ find . -name "*" -type f | sed 's/.*\///' | uniq
s3
s1
s3
s1
s2
$ 
$ # now sort the server names and pipe to uniq
$ find . -name "*" -type f | sed 's/.*\///' | sort | uniq
s1
s2
s3
$

@OP - the data structure that stores unique values is called an "associative array" or "hash". The keys of a hash cannot repeat, hence the server names could be the keys. The value could be a constant or a number that is incremented per occurrence.
Check "man ksh" or "typeset" command for associative arrays in Korn shell.
Most of the scripting languages provide such a data structure - it is called "associative array" in awk, "hash" in Perl and Ruby and "dictionary" (not completely sure) in Python.
In any case, as suggested by ryandegreat25, de-duping your server names before storing them in an array would be the way to go.

tyler_durden