Yet Another CPAN Grep

File-RsyBak ( P/PE/PERLANCAR/File-RsyBak-0.361.tar.gz, PERLANCAR, 2019; MetaCPAN )

File-RsyBak/lib/File/RsyBak.pm ( view source; MetaCPAN )

chema       => 'str*', # temp, because in pericmd when specifying as arg#0, there is a warning of JSON decoding failure
            req          => 1,
            pos          => 0,
        },

 the command-line:

 % rsybak --source /path/to/mydata --target /backup/mydata --extra-rsync-opts-json '["--exclude","Cache","--exclude","cache","--exclude","tmp","--exclude","temp"]'

Or, if you have

<~/rsybak.conf>:

 [system]
 source = /path/to/mydata
 target = /backup/mydata
 ; also specify as JSON
 extra_rsync_opts = ["--exclude","Cache","--exclude","cache","--exclude","tmp","--exclude","temp"