| octmode | R Documentation |
Convert or print integers in octal format, with as many digits as areneeded to display the largest, using leading zeroes as necessary.
as.octmode(x)## S3 method for class 'octmode'as.character(x, ...)## S3 method for class 'octmode'format(x, width = NULL, ...)## S3 method for class 'octmode'print(x, ...)
x | An object, for the methods inheriting from class |
width |
|
... | further arguments passed to or from other methods. |
Class"octmode" consists of integer vectors with that classattribute, used merely to ensure that they are printed in octalnotation, specifically for Unix-like file permissions such as755. Subsetting ([) works too.
Ifwidth = NULL (the default), the output is padded withleading zeroes to the smallest width needed for all the non-missingelements.
as.octmode can convert integers (of type"integer" or"double") and character vectors whose elements contain onlydigits0-7 (or areNA) to class"octmode".
There is a! method and methods for| and&:these recycle their arguments to the length of the longer and thenapply the operators bitwise to each element.
These are auxiliary functions forfile.info.
hexmode,sprintf for other options inconverting integers to octal,strtoi to convert octalstrings to integers.
(on <- as.octmode(c(16, 32, 127:129))) # "020" "040" "177" "200" "201"unclass(on[3:4]) # subsetting## manipulate file modesfmode <- as.octmode("170")(fmode | "644") & "755"umask <- Sys.umask(NA) # depends on platformc(fmode, "666", "755") & !umaskAdd the following code to your website.
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