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Top Forums UNIX for Dummies Questions & Answers Centos commands: Yum Upgrade versus Yum update Post 302390612 by dpc.ucore.info on Thursday 28th of January 2010 11:21:41 AM
Old 01-28-2010
I may be wrong, but... . When the distribution developers decide that some package should not be used and will want to get rid of it from the whole package pool they will mark it obsolete. They may provide some replacement. "Update" will leave the packet as it was on your system. Upgrade will delete such packages and possibly install replacements.
 

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DH_INSTALLEXAMPLES(1)						     Debhelper						     DH_INSTALLEXAMPLES(1)

NAME
dh_installexamples - install example files into package build directories SYNOPSIS
dh_installexamples [debhelperoptions] [-A] [-Xitem] [file...] DESCRIPTION
dh_installexamples is a debhelper program that is responsible for installing examples into usr/share/doc/package/examples in package build directories. From debhelper compatibility level 11 on, dh_install will fall back to looking in debian/tmp for files, if it does not find them in the current directory (or wherever you've told it to look using --sourcedir). FILES
debian/package.examples Lists example files or directories to be installed. OPTIONS
-A, --all Install any files specified by command line parameters in ALL packages acted on. --sourcedir=dir Look in the specified directory for files to be installed. This option requires compat 11 or later (it is silently ignored in compat 10 or earlier). Note that this is not the same as the --sourcedirectory option used by the dh_auto_* commands. You rarely need to use this option, since dh_installexamples automatically looks for files in debian/tmp in debhelper compatibility level 11 and above. --doc-main-package=main-package Set the main package for a documentation package. This is used to install the documentation of the documentation package in /usr/share/doc/main-package as recommended by the Debian policy manual 3.9.7 in S12.3. In compat 11 (or later), this option is only useful if debhelper's auto-detection of the main package is wrong. The option can also be used to silence a warning from debhelper when the auto-detection fails but the default happens to be correct. This option cannot be used when dh_installexamples is instructed to act on multiple packages. If you need this option, you will generally need to combine it with -p to ensure exactly one package is acted on. -Xitem, --exclude=item Exclude files that contain item anywhere in their filename from being installed. file ... Install these files (or directories) as examples into the first package acted on. (Or into all packages if -A is specified.) NOTES
Note that dh_installexamples will happily copy entire directory hierarchies if you ask it to (similar to cp -a). If it is asked to install a directory, it will install the complete contents of the directory. SEE ALSO
debhelper(7) This program is a part of debhelper. AUTHOR
Joey Hess <joeyh@debian.org> 11.1.6ubuntu2 2018-05-10 DH_INSTALLEXAMPLES(1)
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