dwmblocks/blocks.h

//Modify this file to change what commands output to your statusbar, and recompile using the make command.
static const Block blocks[] = {
	/*Icon*/	/*Command*/		/*Update Interval*/	/*Update Signal*/
	{" ", "free -h | awk '/^Mem/ { print $3\"/\"$2 }' | sed s/i//g",	30,		0},

	{"", "get-volume",					1,		1},
	{"", "battery",						15,		0},
	{"", "internet",					5, 		0},
	{"", "brightness",					0,		2},
	{"", "get-date",					5,		0},
};

//sets delimeter between status commands. NULL character ('\0') means no delimeter.
static char delim[] = " | ";
static unsigned int delimLen = 5;