Ruby File.open 모드 및 옵션은 무엇입니까?

Question

루비의 File.open은 모드와 옵션을 인수로 사용합니다. 모드 및 옵션의 전체 목록은 어디에서 찾을 수 있습니까?

Answer 1

Ruby IO module documentation에 있습니다.

Mode | Meaning 
-----+-------------------------------------------------------- 
"r" | Read-only, starts at beginning of file (default mode). 
-----+-------------------------------------------------------- 
"r+" | Read-write, starts at beginning of file. 
-----+-------------------------------------------------------- 
"w" | Write-only, truncates existing file 
    | to zero length or creates a new file for writing. 
-----+-------------------------------------------------------- 
"w+" | Read-write, truncates existing file to zero length 
    | or creates a new file for reading and writing. 
-----+-------------------------------------------------------- 
"a" | Write-only, starts at end of file if file exists, 
    | otherwise creates a new file for writing. 
-----+-------------------------------------------------------- 
"a+" | Read-write, starts at end of file if file exists, 
    | otherwise creates a new file for reading and 
    | writing. 
-----+-------------------------------------------------------- 
"b" | Binary file mode (may appear with 
    | any of the key letters listed above). 
    | Suppresses EOL <-> CRLF conversion on Windows. And 
    | sets external encoding to ASCII-8BIT unless explicitly 
    | specified. 
-----+-------------------------------------------------------- 
"t" | Text file mode (may appear with 
    | any of the key letters listed above except "b"). 

Answer 2

opt은 루비 1.9의 새로운 기능입니다. 다양한 옵션은 IO.new에 문서화되어 있습니다. www.ruby-doc.org/core/IO.html