kodingwindow@kw:~$ R
...
> "Kodingwindow"
[1] "Kodingwindow"

> print("Hello World")
[1] "Hello World"

> cat("Hello World\n")
Hello World

> length("Kodingwindow")
[1] 1

> nchar("Kodingwindow")
[1] 12

> toupper("Kodingwindow")
[1] "KODINGWINDOW"

> tolower("KODINGWINDOW")
[1] "kodingwindow"

> substring("Kodingwindow",7,12)
[1] "window"

> paste("Koding","window")
[1] "Koding window"

> paste("Koding","window",sep="")
[1] "Kodingwindow"

> paste("Koding","window",sep="@@@")
[1] "Koding@@@window"

> format("Kodingwindow",width=20)
[1] "Kodingwindow        "

> format("Kodingwindow",width=20,justify="")
Error in match.arg(justify) : 
  'arg' should be one of “left”, “right”, “centre”, “none”

> format("Kodingwindow",width=20,justify="l")
[1] "Kodingwindow        "

> format("Kodingwindow",width=20,justify="c")
[1] "    Kodingwindow    "

> format("Kodingwindow",width=20,justify="r")
[1] "        Kodingwindow"

> format("Kodingwindow",width=20,justify="n")
[1] "Kodingwindow"