On Wed, Oct 14, 2009 at 01:41:36AM +1100, Frank Charles Gallacher wrote: > Greetings, > > When I was a system administrator, there was a command to find out how > much real memory was on your system, logged in as root (making sure you > didn't confuse the input and output!): > > dd if=/dev/mem of=/dev/null bs=1024 conv=noerror > > It would chug away for a minute or two, then give you a number of > records in and out, this number was how many KB or RAM you had; > I tried this on debian, now all I get is a string of error messages... > > Is there a better way???
Not sure. But for those of you who want other interesting examples for using dd, check out http://www.tardis.ed.ac.uk/~lard/fomcol/code/clc1.txt # this is a line editor using only /bin/sh, /bin/dd and /bin/rm # /bin/rm is not really required, but it is nice to clean up temporary # files And later on: # arithmetic using dd! -- Tzafrir Cohen | tzaf...@jabber.org | VIM is http://tzafrir.org.il | | a Mutt's tzaf...@cohens.org.il | | best ICQ# 16849754 | | friend -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
