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matching not working as expected...

Hi,

I have the file /tmp/qqq that contains:

Code:

If I issue:

Code:

sed /[0-9]\{3\}/p /tmp/qqq

It prints all lines

I don't know why because if I run:

Code:

egrep [0-9]{3} /tmp/qqq

It outputs only:

Code:

232323

I tried even with and without quoting or even with and with without "\" or even using "-r". OK in this little example I could use egrep but I am trying to do something more complex and sed would be useful if it worked as I (perhaps wrong) expected

Could you help me?

Hi,

Code:

sed -n '/[0-9]\{3\}/p' /tmp/qqq

Hope this helps.