QuoteRef: thomK_1976 ;;377 each program has standard input and output files which can be changed at call site

378 ;;Quote: I/O redirection can either create a new output file or append to an existing one

QuoteRef: thomK_1976 ;;378 a;b for operation a then operation b while a & b is a and b at same time or a& is a and the master console

QuoteRef: thomK_1976 ;;379 a|b means standard output of a is b's standard input

QuoteRef: thomK_1976 ;;379 (a;b) creates a new Shell (&the CLI) to do a then b with b's output appended to a's

QuoteRef: thomK_1976 ;;379 "Since these operations can be user-supplied, it is easily extensible ([the Unix command line interpreter)

QuoteRef: thomK_1976 ;;380 goto x rewinds standard input, scans to (:x), and starts executing at next statement

QuoteRef: thomK_1976 ;;380 As command. for specifying literals in UNIX shell

383 ;;Quote: many computing tasks are generate elements, filter them, sink them, e.g. print