[Linux OT] Regular expresion question

[Jason Joines]

Jean Sagi wrote:
> 
> Hi all,
> 
> Maybe anyone could help with a regular expresion for matching a rabge of 
> numbers.
> 
> Lets say You a have a file, in which each line is string of the form:
> hddmmyy, where h is the char 'h' and dd is a day (01..31), mm is a month 
> (01..12) and yy are the last two digists of the current year.
> 
> So the file could be:
> 
> h030904
> h300904
> h290904
> h040904
> h090904
> h100904
> h120904
> h150904
> h180904
> h020904
> h190904
> h220904
> h050904
> h240904
> h207904
> 
> All these represent files created in some days of september this year.
> 
> What I want is to get a regular expresion wich matches a range of days, 
> for example the files representing day 10 through 25 for instance, with 
> the previous example the next sould match:
> 
> h100904
> h120904
> h150904
> h180904
> h190904
> h220904
> h240904
> h207904
> 
> Some kind of this expresion
> 
> ^h<range expresion>09
> 
> where <range expresion> is a pattern that matches:
> 10
> 11
> 12
> 13
> 14
> 15
> 16
> 17
> 18
> 19
> 20
> 21
> 22
> 23
> 24
> 25
> 
> so that files like
> 
> h100904
> h110904
> h120904
> h130904
> h140904
> h150904
> h160904
> h170904
> h180904
> h190904
> h200904
> h210904
> h220904
> h230904
> h240904
> h250904
> 
> Be matched
> 
> 
> I could acomplish what I'm asking with awk but I'm wondering if regular 
> expresion could do the work.
> 
> Any help would be very appreciated.
> 
> Chucho!
> 


Jean,

	I think something like this will do what you want although I believe 
it's a globbing pattern instead of a regular expression.

/tmp/lusers> ls
h020904  h040904  h090904  h120904  h180904  h207904  h240904  h300904
h030904  h050904  h100904  h150904  h190904  h220904  h290904  list

/tmp/lusers> ls h[1-2][0-5]*
h100904  h120904  h150904  h207904  h220904  h240904


Jason Joines
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