Glossary
standard error
standard input
standard output
startup super user
One of three files described under standard output.
The second of three files described under standard output.
Open files, customarily available when a process begins, with file descriptors 0, 1, 2, and stdio names “stdin,” “stdout,” “stderr;” where possible, utilities by default read from the standard input, write on the standard output, and place error comments on the standard error file. Initially, all three of these files default to your terminal.
Same as boot.
User ID 0 (user identification number 0), which can access any file regardless of permissions and can perform certain privileged system calls; for example, setting the clock. The root [3] login name.
