Some command strings are subject to simplified sh-style word splitting: single quotes (') and double quotes (") have the usual meaning; the backslash quotes everything (not only special characters). Note that the backslashes need to be doubled because of the two levels of quoting. ###>Some command strings are subject to simplified sh-style word splitting: single quotes (') and double quotes (") have the usual meaning; the backslash quotes everything (not only special characters). Note that the backslashes need to be doubled because of the two levels of quoting.