EXHIBIT 1

JOINT FILING AGREEMENT

In accordance with Rule 13d-1(k) of the Securities Exchange Act of 1934, as amended, the undersigned agree to the joint filing on behalf of each of them of a Statement on Schedule 13G (including any and all amendments thereto) with respect to the common stock of Dollar General Corporation and further agree that this Joint Filing Agreement shall be included as an Exhibit to such joint filing.  In evidence thereof, the undersigned, being duly authorized, hereby execute this Joint Filing Agreement as of February 16, 2010.

	KKR 2006 FUND L.P.
By:	KKR Associates 2006 L.P., its general partner
By:	KKR 2006 GP LLC, its general partner
By:	/s/ William J. Janetschek
	Name: William J. Janetschek
	Title:   Director
	KKR ASSOCIATES 2006 L.P.
By:	KKR 2006 GP LLC, its general partner
By:	/s/ William J. Janetschek
	Name: William J. Janetschek
	Title: Director
	KKR 2006 GP LLC
By:	/s/ William J. Janetschek
	Name: William J. Janetschek
	Title: Director
	KKR FUND HOLDINGS GP LIMITED
By:	/s/ William J. Janetschek
	Name: William J. Janetschek
	Title: Director

	KKR GROUP HOLDINGS L.P.
By:	KKR Group Limited, its general partner
By:	/s/ William J. Janetschek
	Name: William J. Janetschek
	Title: Director
	KKR GROUP LIMITED
By:	/s/ William J. Janetschek
	Name: William J. Janetschek
	Title: Director
	KKR & CO. L.P.
By:	KKR Management LLC, its general partner
By:	/s/ William J. Janetschek
	Name: William J. Janetschek
	Title: Attorney-in-fact for Henry R. Kravis, Designated Member
By:	/s/ William J. Janetschek
	Name: William J. Janetschek
	Title: Attorney-in-fact for George R. Roberts, Designated Member
	KKR MANAGEMENT LLC
By:	/s/ William J. Janetschek
	Name: William J. Janetschek
	Title: Attorney-in-fact for Henry R. Kravis, Designated Member
By:	/s/ William J. Janetschek
	Name: William J. Janetschek
	Title: Attorney-in-fact for George R. Roberts, Designated Member
	HENRY R. KRAVIS
By:	/s/ William J. Janetschek
	Name: William J. Janetschek
	Title: Attorney-in-fact

	GEORGE R. ROBERTS
By:	/s/ William J. Janetschek
	Name: William J. Janetschek
	Title: Attorney-in-fact