What are differences on this sentences of Unix programas executuions ?
b) program1;program2;program3 &
c) (program1;program2;program3) &
I think a) starts to execute command1. When command1 finishes, starts
programa2. When programa2 finishes, starts program3.
I think b) is same as a), except program 3 is executed in background.
I think c) executes program1 in background. When program1 finishes it
executes program 2 in background. When program2 finishes it starts
program3 in background.