The head command returns the first n lines of the object as a string. This can
be useful when inspecting the content of a large file (without first having to
download and store it on disk locally).
Usage
mc_head(target, n = 10, flags = "")
Arguments
- target
character string specifying the target directory path.
- n
integer number of lines to read from the beginning, by default 10
- flags
additional flags to be passed to the cat command.
Default is an empty string.
Value
a character string with the contents of the file
Examples
if (FALSE) { # interactive()
# upload a CSV file
install_mc()
tf <- tempfile()
write.csv(iris, tf, row.names = FALSE)
mc_mb("play/iris")
mc_cp(tf, "play/iris/iris.csv")
# read first 13 lines from the CSV (header + 12 rows of data)
read.csv(text = mc_head("play/iris/iris.csv", n = 13))
}