100 Appendix A. Command Line Config Management ToolsA.2.2.1. Add OptionsThe following options are applicable to the add mode:Option Description-h, --help Display this list of options and exits.-c=, --channel=CHANNEL_LABEL Required - Use this config channel.-d=, --dest-file=DEST_FILE Conflicts with --topdir - Identify the destination pathand filename of a single file.-t=, --topdir=TOPDIR Conflicts with --dest-file - Handle multiple files at adifferent location than their destination path. Make allfiles relative to this string.--delim-start=DELIM_START Start delimiter for variable interpolation.--delim-end=DELIM_END End delimiter for variable interpolation.Table A-1. Add OptionsA.2.3. Differentiating between Latest Config FilesTo obtain a difference between the config files on disk and the latest revisions in a channel, issue thecommand:rhncfg-manager diff--channel=channel-label--dest-file=/path/to/file.txt/local/path/to/fileYou should see output resembling:/tmp/dest_path/foo.txt /home/test/blahhello_world.txt--- /tmp/dest_path/foo.txt config_channel: blah revision: 1+++ /home/test/blah/hello_world.txt 2003-12-14 19:08:59.000000000-0500@@ -1 +1 @@-foo+hello, worldA.2.4. Differentiating between Various VersionsTo compare different versions of a file across channels and revisions, use the -r flag to indicate whichrevision of the file should be compared and the -n flag to identify the two channels to be checked.Refer to Section A.2.11 Determining the Number of File Revisions for related instructions. Note thatyou specify only one filename here, since you’re comparing the file against another version of itself,such as:rhncfg-manager diff-revisions-n=channel-label1-r=1-n=channel-label2-r=1/path/to/file.txt