On Fri May 10 08:16:32 2024 "Robert B. Carleton" <[email protected]> wrote:
> I'm going to try using pax(1) in copy mode (-rw) as an alternative to
> rsync and cpio when it's local filesystems. I hadn't considered that
> until recently.
This is my dirty solution to add pax a "delete on target" functionality.
I save the list of the files and directories I want to back up to a file
(starting from my $HOME). Notice that directories end with a slash (to
facilitate filtering with grep in the script.)
----------------------------
# backup_list
.Xdefaults
.kshrc
.nexrc
.profile
.calendar/
.config/feh/
.config/fontconfig/
.config/gtk-3.0/gtk.css
Documents/
Pictures/
[...]
-------------------------------
Then I do something like this (simplified for clartiy):
----------------------------------------------
backup_list=/path/to/backup_list
source=$HOME
target=$device
files=$(egrep -v "^$|^#" $backup_list)
pax -rw -v -Z -Y $files $target
# Delete files not present in source from target directory
date=$(date +%H%M%S)
delete_list=/tmp/delete_$date
source_list=/tmp/source_$date
target_list=/tmp/target_$date
dirs=$(echo "$files" | grep '/$')
for i in $dirs ; do
find $source/$i | sed 's#'$source'##' | sort | uniq > $source_list
find $target/$i | sed 's#'$target'##' | sort | uniq > $target_list
diff $source_list $target_list |\
awk '/^> / { print "'$target'" $NF }' >> $delete_list
done
cat $delete_list | sed 's/^/delete /'
rm -rf $(cat $delete_list | xargs)
rm $source_list $target_list $delete_list
------------------------------------------------
--
Walter
Using my patched version of OpenBSD mail(1).
https://en.roquesor.com/Downloads/mail_patches.tar.gz
