Alexandre CHARTRE - Solaris Sustaining wrote:
> A problem is that mdb pipes only accept pointers and they don't accept
> other text. But you can do what you want using two steps:
> somedcmds ! grep "addr = 0x" | awk '{print $3}' > /tmp/file
> ::cat /tmp/file | otherdcmds
> Yongce Tu wrote:
...
>> I can use [i]somedcmds !grep "addr = 0x" | awk '{print $3}'[/i] to get
>> the result. But i cannot do like this, because the output cannot be
>> used in MDB and i expect the ouput can be used as input of some other
>> dcmd.
>> How to solve it?
This is, in my opinion, a gap in mdb's functionality. I've logged
6433722 mdb should allow me to print if a field matches rather than pipe to grep
Here's the description field (all there is so far):
========================================================================
For a long time now I've wanted mdb to have a dcmd which will allow me to print
out a structure (or structure members) only if a particular condition is met.
For example, if I'm walking a list of fcp_lun and I want to see all the
address of
all luns which have (lun_mpxio = 1) and have a null lun_cip at present I
have to
walk the lunlist, counting lines, then walk the lunlist printing lun_mpxio
and lun_cip
and match up the output to the first list.
This is darned tedious!
What I envisage is a dcmd somewhat similar to this:
::printif {condition} [-o|-a] [-n] {condition-list} [structure members to print]
(-o ==> or
-a ==> and
-n ==> not
So for my example above I would then use
*fcp_port_head::walk fcp::walk targets::walk luns::printif lun_mpxio==1 -a
lun_cip==NULL
and if I wanted to delve further I would then use something like this:
*fcp_port_head::walk fcp::walk targets::walk luns::printif \
lun_mpxio==1 -a lun_cip==NULL \
lun_inq.inq_vid lun_inq.inq_pid lun_inq.inq_revision \
lun_inq.inq_serial
*** (#1 of 1): 2006-06-05 17:36:21 EST james.mcpherson at sun.com
========================================================================
--
James C. McPherson
--
Solaris Datapath Engineering
Data Management Group
Sun Microsystems
