On Mon, 15 Feb 2010, Bowie Bailey wrote: > I use rpm for basic stuff because it runs faster. For example: > > $ time yum list installed > ... > real 0m17.069s > user 0m0.857s > sys 0m0.675s > > $ time rpm -qa > ... > real 0m4.714s > user 0m4.457s > sys 0m0.120s > > Yum tends to take a while to read in its databases before it processes > your command. So for simple commands, it is faster to use rpm. On slow > boxes, it can be significantly faster. naw -- The 'speed' issue here comes down to a scripting language v a compiled one -- librpm underneath on each in CentOS 5. Here is a more apple to apples comparison on those timings on the work being done [herrold at centos-5 clang]$ time rpm -qa --nosignature \ --nodigest > /dev/null real 0m0.329s user 0m0.208s sys 0m0.076s [herrold at centos-5 clang]$ time yum list installed > /dev/null real 0m4.252s user 0m1.948s sys 0m0.132s [herrold at centos-5 clang]$ -- Russ herrold