sed replace issue

Hi,
I have a problem with sed. I am trying to replace all occurances of
the same field in many files , the field I am having problems is :

containermax=1000

Now the containermax value may well be 0 in some files or 2400 or 159
in others.

I need to reset all the values back to 0

For instance if the value on the field was 2400, when I run the
following
I get weird results
$ sed s/containermax=[0..9]*/containermax=0/g contain.mbf
containermax=24000

If should be:
containermax=0

Where am I going wrong,
thanks
Pete

Re: sed replace issue

peter sands wrote:

> Hi,
> I have a problem with sed. I am trying to replace all occurances of
> the same field in many files , the field I am having problems is :
>
> containermax=1000
>
> Now the containermax value may well be 0 in some files or 2400 or 159
> in others.
>
> I need to reset all the values back to 0
>
> For instance if the value on the field was 2400, when I run the
> following
> I get weird results
> $ sed s/containermax=[0..9]*/containermax=0/g contain.mbf
> containermax=24000
>
> If should be:
> containermax=0
>
> Where am I going wrong,
> thanks
> Pete
>

sed 's/containermax=[0-9]*/containermax=0/g' contain.mbf

Regards,

Ed.

Re: sed replace issue

peter sands writes:

> I get weird results
> $ sed s/containermax=[0..9]*/containermax=0/g contain.mbf

> Where am I going wrong,

A tip to explain strange things - put "echo" in front of your command to see if the shell
is modifying arguments before passing it to your command
i.e.

$ echo sed s/containermax=[0..9]*/containermax=0/g

Re: sed replace issue

On 2007-10-15, peter sands wrote:
> Hi,
> I have a problem with sed. I am trying to replace all occurances of
> the same field in many files , the field I am having problems is :
>
> containermax=1000
>
> Now the containermax value may well be 0 in some files or 2400 or 159
> in others.
>
> I need to reset all the values back to 0
>
> For instance if the value on the field was 2400, when I run the
> following
> I get weird results
> $ sed s/containermax=[0..9]*/containermax=0/g contain.mbf
> containermax=24000
>
> If should be:
> containermax=0
>

try

sed -i 's/containermax=[0..9]*/containermax=0/g' contain.mbf

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