| The echo command prints its arguments to the console separated by spaces. |
| Do not print a line feed after the last argument. |
| Arguments to be printed. The arguments are evaluated before being passed to |
| Strings are parsed before the arguments are passed to the echo command: |
| Observe how variables included in strings are handled: |
| => setenv var X; echo "a)" ${var} 'b)' '${var}' c) ${var} |
| -n suppresses the line feed: |
| => echo -n 1 2 3; echo a b c |
| => for i in a b c; do for j in 1 2 3; do echo -n "${i}${j}, "; done; echo; done; |
| The return value $? is always set to 0 (true). |