-* The @read@ command takes the contents of stdin and puts it into the shell variable named on the command line.
-* The @<<EOF@ notation means read each line on stdin and pipe it to the command, terminating on reading the line @EOF@.
-* The @export@ command puts a local shell variable into the environment that will be inherited by child processes (e.g. the @arv@ client).
+* The @read@ command reads text input until @EOF@ (designated by @<<EOF@) and stores it in the @ARVADOS_API_TOKEN@ environment variable.
+* The @export@ command puts a local shell variable into the environment that will be inherited by child processes such as the @arv@ client.