-bash-3.1$ cat <(printf "aaa\nbbb\n") <(printf "111\n222\n") aaa bbb 111 222
-rw-r--r-- 1 cleseb01 cleseb01 51 Feb 11 16:27 script -bash-3.1$ cat script cat <(printf "aaa\nbbb\n") <(printf "111\n222\n") -bash-3.1$ sh script script: line 1: syntax error near unexpected token `(' script: line 1: `cat <(printf "aaa\nbbb\n") <(printf "111\n222\n")'