yes. you're right. sh(1)You will need to tell echo to expand backslash escapes
Code:sh -c "echo -e '111 $USER\n$USER'"
echo [-e | -n] [string ...]
Print a space-separated list of the arguments to the standard
output and append a newline character.
-n Suppress the output of the trailing newline.
-e Process C-style backslash escape sequences.