130 Appendix A. Command Line Config Management Tools
A.1.3. Viewing Config Channels
To view the labels and names of the config channels that apply to the system, issue the command:
rhncfg-client channels
You should see output resembling:
Config channels:
Label Name
----- ----
config-channel-17 config chan 2
config-channel-14 config chan 1
A.1.4. Differentiating between Config Files
Toobtain a difference between the config files deployed on the system and those for it stored by RHN,
issue the command:
rhncfg-client diff
You should see output resembling:
--- /tmp/@3603.0.rhn-cfg-tmp 2004-01-13 14:18:31.000000000 -0500
+++ /etc/foo.txt 2003-12-16 21:35:32.000000000 -0500
@@ -1,3 +1,5 @@
+blaaaaaaaaaaaaaaah
In addition, you may include the --topdir option to compare config files in RHN with those located
in an arbitrary (and unused) location on the system, like so:
[root@ root]# rhncfg-client diff --topdir /home/test/blah/
/usr/bin/diff: /home/test/blah/etc/foo.txt: No such file or
directory
/usr/bin/diff: /home/test/blah/var/spool/aalib.rpm: No such file or
directory
A.1.5. Verifying Config Files
To quickly determine if files are different than those associated with it in RHN, issue the command:
rhncfg-client verify
You should see output resembling:
modified /etc/foo.txt
/var/spool/aalib.rpm
The file foo.txt is locally modified, while aalib.rpm is not.
