[CentOS] [OT] Grep Patterns

Thu Apr 8 01:12:37 UTC 2010
Les Mikesell <lesmikesell at gmail.com>

Joseph L. Casale wrote:
>> Yes whitespace always.
> [root at dev ~]# echo " CP_" | egrep -e "\ CP_"
>  CP_
> [root at dev ~]# echo "CPLAT::CP_" | egrep -e "\ CP_"
> [root at dev ~]#
>> So what I am doing is a massive replace. So this grep will allow me to see how many instances still need to be replaced.
>> I am replacing CP_ with CPLAT::CP_ and when i execute the grep I want to ignore CPLAT:CP_ so I just see the CP_ that still need to be done.
> Typo in that? You want to ignore " CPLAT::CP_" right? Depends on what
> tool you use and what std it follows, I don't even think you need to
> escape the "space". 

White space could be a tab.  '[[:space:]]CP_' should work, but why not use sed 
and be done with it.

   Les Mikesell
    lesmikesell at gmail.com