1*b5253557SWarner LoshBEGIN { 2*b5253557SWarner Losh RS = 1; 3*b5253557SWarner Losh while ("echo a1b1c1d" | getline > 0) { 4*b5253557SWarner Losh print $1; 5*b5253557SWarner Losh } 6*b5253557SWarner Losh} 7