[NBLUG/talk] rpm question

[augie]

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Todd Cary wrote:
> There is a long list of dependencies if I try to uninstall httpd!
> This brings up three questions: 1) How do I "pipe" the errors from
> "rpm -e httpd" to a file?  "rpm -e httpd
> >/home/todd/rpm_uninstall.txt"  does not give the errors.

this is sorta the right way, only this only grabs STDOUT (standard
output), when you want to grab STDERR (standard error):

$ rpm -e 2> httpd >/home/todd/rpm_uninstall.txt

see:

http://en.tldp.org/HOWTO/Bash-Prog-Intro-HOWTO-3.html

for more info. also http://www.tldp.org/ 'The Linux Documentation
Project' is an amazing resource.

> 2) If I use "rpm -e --nodeps httpd" will all of those dependencies be
>  satisfied when I install apache-1.3.27?  Hate to take my http server
>  down forever :-) !!

actually it is rather the opposite. from the rpm man page:

- --nodeps
Don't do a dependency check before installing or upgrading a
package.

so everything will just get ripped out regardless of what else depends
on it. usually there is an order to these rpm dependencies, such that if
you want to uninstall package 'C' you will first need to uninstall
package 'B', but even before that package 'A'. however sometimes this
can go on forever.

> 3) How do I find out where Apache (httpd) is currently installed?  I
> think it may be at /home/httpd/www_default/.

you could use the above rpm switches, or either the 'slocate' command or
the 'find' command. have a look at their manuals for more info.

augie.


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