[lug] Regex from shell

[Budyanto Himawan]

Hey...thanks a lot.

This was what I was looking for
kill 111{0,1,2,3,4,5,6,7,8,9}.

But this
kill $( seq 1110 1119 ) is a whole lot more elegant.:)

Thanks Again

--- Tkil <tkil at scrye.com> wrote:

> >>>>> "Budyanto" == Budyanto Himawan
> <budyanto_himawan at yahoo.com> writes:
> 
> Budyanto> Is there a way to specify a shell command
> mixed with regular
> Budyanto> expression?
> 
> First minor twiddle: the shell wildcard system is
> usually called
> "globbing"; while it took some ideas and parts of
> notation from
> typical regular expression systems, it is not
> regular expressions.
> 
> Something I wrote up on this a few years back:
> 
>   
>
http://groups.google.com/groups?selm=glnqtgszo.fsf%40scrye.com&output=gplain
> 
> Budyanto> for example I want to kill all processes
> with pids 1110 to
> Budyanto> 1119
> 
> Budyanto> I want to do something like "kill
> 111[0-9]".
> 
> Budyanto> I tired a few different combo of the above
> and none seems to
> Budyanto> work. I know there must be something like
> that cause I used
> Budyanto> to know it but I just can't seem to
> recall.
> 
> This fails because the shell does globbing (at least
> with "*", "?",
> and bracket expressions as above) only against
> filenames in the
> current working directory.  
> 
> To clarify: the shell does the globbing, not the
> command (on unix; on
> dos, the command is responsible for interpreting
> it's arguments!).
> Generally, that globbing is done by searching for
> matches from a
> particular set of strings.  By default, that set of
> strings is the
> list of filenames in the current working directory. 
> You are asking
> the shell to search over the set of strings
> comprising the active
> processes on your system -- which it might very well
> be able to do,
> but I don't know how to ask it to do so.  :)
> 
> There is another form of globbing that actually
> generates values, the
> braces version.  You could do:
> 
>    kill 111{0,1,2,3,4,5,6,7,8,9}
> 
> For sequences like that, consider using 'seq' to
> generate the needed
> numbers.  As I mentioned in a different reply:
> 
>    kill $( seq 1110 1119 )
> 
> Finally, if these are all the same process, and the
> only instances of
> that process on your system, take a look at
> 'killall'.
> 
> A few other cheap tricks...  Since Linux (in most
> distributions, at
> least) has an entry in /proc for every process-id
> that is currently
> active, you actually can use globbing on it:
> 
>    kill $( cd /proc; ls 111? )
> 
> If you don't have the /proc filesystem, you can use
> true regular
> expressions (with 'grep', 'awk', or 'perl') to
> grovel through the
> output of 'ps':
> 
>    kill $( ps -A -o pid | grep '^111.$' )
> 
> t.
> 


=====
===========================
Budyanto Himawan
budyanto_himawan at yahoo.com
===========================


		
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