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Basic usage examples
====================
This directory contains basic examples of *ucf*(1) usage.
Automatic generation of the necessary fragments for common cases can also be
achieved with *dh_ucf*(1) from *debhelper*(7).
Further examples
================
Remove a ucf controlled conffile during package upgrade
---------------------------------------------------------
conffile=<Destination>
IFS=: read -r cf pkg exists modified <<EOF
$(ucfq -w $conffile)
EOF
# Sanity checks
[ "$cf" = "$conffile" ] || error_exit # Bad, should never happen
[ "$pkg" = "$DPKG_MAINTSCRIPT_PACKAGE" ] || return # Not our conffile
# Remove $conffile if it exists and is unmodified.
if [ "$exists" = Yes ] && [ "$modified" = No ]; then
rm $conffile
fi
# Purge from ucf state.
ucf --purge $conffile && ucfr --purge $DPKG_MAINTSCRIPT_PACKAGE $conffile
Rename a ucf controlled conffile during package upgrade
-------------------------------------------------------
conffile=<Old>
new_conffile=<New>
# Copy if it exists
[ -f $conffile ] && cp $conffile $new_conffile
# Register new
ucf input.conf $new_conffile
ucfr $DPKG_MAINTSCRIPT_PACKAGE $new_conffile
# Removals
if [ -f $conffile ]; then
rm $conffile
else
# The old conffile had been deleted, so
# do the same for the new one.
rm $new_conffile
fi
# Purge from ucf state.
ucf --purge $conffile && ucfr --purge $DPKG_MAINTSCRIPT_PACKAGE $conffile
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