Hi, the Command is being correctly executed, the return codes are -10
Command←'echo "sad x asds" | sed "s/x/y/g"' Handle←⎕FIO[24] Command D←⎕FIO[6] Handle ZN←⎕UCS D ZN sad y asds ⎕FIO[25] Handle ¯10 Command←'sed "s/x/y/g" <<< "sad x asds"' Handle←⎕FIO[24] Command D←⎕FIO[6] Handle ZN←⎕UCS D ZN sad y asds ⎕FIO[25] Handle ¯10 However starting a new apl session gives: Command←'sed "s/x/y/g" <<< "sad x asds"' Handle←⎕FIO[24] Command D←⎕FIO[6] Handle ZN←⎕UCS D ⎕FIO[25] Handle 0 'libedif2.so' ⎕FX 'E' E Command←'sed "s/x/y/g" <<< "sad x asds"' Handle←⎕FIO[24] Command D←⎕FIO[6] Handle ZN←⎕UCS D ⎕FIO[25] Handle ¯10 I have not checked other native functions. Regards Hans-Peter