Is "responsiveness" the same as "responsive design"?
1. sed t file instead of cat file
2. echo dir/*|tr '\040' '\012' instead of find dir
3. echo dir/*|tr '\040' '\012' |sed 's/.*/program & |program2 /' > file; . file instead of xargs or find
4. same as 3. but use split to split file into parts. then execute each part on a different cpu.