📅  最后修改于: 2022-03-11 14:49:30.139000             🧑  作者: Mango
Use rev command altogether with cut command as follows:
echo "a1 a2 a3 a4 a5" | rev | cut -d ' ' -f '1' | rev
#rev reverses string, then you cut from 2th field to end and reverse back