vi

vi (doc la "vi ai" theo cach danh van tieng Anh) la chuong trinh soan thao van ban tren may tinh duoc viet boi Bill Joy nam 1976 de dung cho he dieu hanh BSD. Sau nay no duoc AT&T dung va tro thanh tieu chuan (du khong chinh thuc) trong Unix. vi duoc dung o che do van ban (text mode) nhu tram cuoi (terminal) va console. Ten goi lay tu chu viet tat (hai chu dau) cua lenh visual trong chuong trinh ex. Lenh nay chuyen che do bien tap dong (line mode) cua ex sang che do truc quan (visual mode).

Thong thuong, vi ly do thuan tien, cung mot chuong trinh se khoi dong o che do vi hay ex, tuy theo ten lenh duoc go. Ten "vi" duoc xem la viet tat chu dau nen duoc phat am tung chu cai la [vi: aI] (theo IPA) ma khong doc thanh mot tu.

vi co the kho dung doi voi nguoi moi biet, vi no la trinh bien tap theo che do (modal editor), tuc la no quy dinh cac phim co y nghia khac nhau tuy theo che do hien dung. Hai che do chinh cua vi la insert (dien) va command (lenh). O che do insert, van ban duoc nhap vao binh thuong. O che do command, cac phim duoc dung de ra lenh, nhu de di chuyen con tro, xoa ky tu, v.v. Uu diem cua viec co che do lenh rieng la no lam don gian nhieu thao tac soan thao, thay vi phai dung mot ngon tay giu phim Alt, phim Ctrl, hay cac phim dac biet khac.

Hien nay vi va emacs, cung la mot trinh soan thao van ban xuat hien tu nam 1984, la hai phe cua mot cuoc chien ve trinh bien tap.

Khi moi khoi dong, vi o che do lenh. Tu che do lenh ta luon co the chuyen sang che do van ban bang cach bam phim chu i. Nguoc lai, tu che do van ban chuyen sang che do lenh bang phim Esc.

Cac lenh co ban trong vi deu bat dau bang dau hai cham. Sau do thuong la cac chu cai viet tat cac tu tieng Anh tuong ung voi chuc nang cua lenh do:

vi duoc viet tai Evans Hall Luu tru ngay 16 thang 1 nam 2005 tai Wayback Machine, Dai hoc California tai Berkeley boi Bill Joy.^[1]

• vi duoc chuyen tu vi 3.7 tren BSD co dien sang cac he thong Unix hien dai. No dung ed lam co so ma (codebase), duoc phan phoi tu do theo kieu BSD tu thang 1 nam 2002.[1]
• nvi su dung vi nguyen thuy vao BSD thu 4 (4BSD).[2] Luu tru ngay 5 thang 12 nam 2006 tai Wayback Machine
• Elvis la mot dong vi chay tren Unix va cac he dieu hanh khac.[3] Luu tru ngay 13 thang 5 nam 2008 tai Wayback Machine.
• Vigor them Vigor Assistant (co y dua theo nhan vat hoat hoa Clippy cua Microsoft Office) vao vi.[4]
• VILE bo sung tinh nang nhieu bo dem va cua so.[5] Luu tru ngay 11 thang 8 nam 2004 tai Wayback Machine
• vim - "Vi IMproved" - ban nang cap va mo rong cho vi.[6]
• bvi "Binary VI" - trinh bien tap tap tin nhi phan.[7]
• svicc - "Small VI Clone for the Commodore (64)" [8]

• Trang nguoi yeu thich vi
• Trinh bien tap vi va cac dong cua no va cac chuong trinh co giao dien giong vi Luu tru ngay 4 thang 4 nam 2005 tai Wayback Machine
• Tai nguyen cho vi
• Huong dan su dung vi Luu tru ngay 4 thang 4 nam 2005 tai Wayback Machine
• Huong dan nhanh ve vi

• Chuong trinh soan thao van ban
• Phan mem tu do
• Phan mem cho Unix
• Tien ich Unix SUS2008
• Phan mem su dung giay phep BSD

• Trang co IPA thuong
• Ban mau webarchive dung lien ket wayback