Re: Grep uniqueness issue
- From: ewalker@xxxxxxxxxx (Eric Walker)
- Date: Fri, 29 Jul 2005 09:19:16 -0600
can you use the uniq command?
On Friday 29 July 2005 09:03 am, jason_normandin@xxxxxxxxxxx wrote:
> Hey Guys
>
> I am having an odd problem using grep to ensure an array only contains
> distinct entries.
>
> I have a list similar to the following in a file (short example of a much
> longer list)
>
> support01-FastEthernet1/0
> support01-RH
> jnormandin-p370-1691-SH-Cpu-2
> jnormandin-p370-1691-SH
>
> These entries may or may not appear multiple times within that list.
>
> I am trying to create an ARRAY containing each of these entries only once
> (a distinct list). I am using a grep statement:
>
> push @pingErrorsName, $element if (! grep (/\b$element\b/,
> @pingErrorsName));
>
> * Where $element contains one of the above names in the list and
> @pingErrorsName is the distinct list of elements.
>
> What I am finding is that the array will contain all of the correct entries
> except: jnormandin-p370-1691-SH. It appears as though the grep is matching
> jnormandin-p370-1691-SH to the jnormandin-p370-1691-SH-Cpu-2 string (as it
> is a substring of the second one).
>
> Now I am using word boudnary anchors (\b) in the grep so I am confused as
> to why this is not working.
>
> Does anyone have any ideas as to why this is occuring and how I can prevent
> it?
--
Eric Walker
EDA/CAD Engineer
Work: 208-368-2573
.
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