Shell multi-command execution ';' and '&'

Shell multi-command execution & amp; #39; & amp; #39; and & amp; #39; & amp; #39; the command shell can execute multiple commands at a time. & amp; #39; & amp; #39; and & amp; #39; & amp; & amp; #39; separated. Use & amp; #39; & amp; #39 ;-----
Shell multi-command execution ';' and '&' command shell can execute multiple commands at a time. each command can be separated by ';' and. Run ';' --------- to execute the first command. www.2cto.com executes the next command regardless of whether the First Command has an error. '&' -------- Indicates that the next command is executed only after the first command is correctly executed, similar to a short circuit.