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lang-bash
--ignore-failed-readbut if there are some files insideconfig/for example that the current user doesn't have permission to read this command returns 0:# tar cz --ignore-failed-read data config myfile | /bin/dd of=backup.tar tar: config/config.txt: Warning: Cannot open: Permission denied 0+1 records in 0+1 records out # echo ${PIPESTATUS[0]} 0and this is wrong for me! The process substitution is a bit too much complex too, so I think I'll stick with Hauke's solution.