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Next: Block-oriented I/O in UNIX Up: 304-427 Lecture Notes Previous: Process creation in UNIX

Process Description and Control - IV

This article will introduce the block-oriented I/O implemented by the file handling primitives of UNIX and will introduce the concept of pipeline and how it is implemented in UNIX.

Since file systems in UNIX will be treated later in course, in conjunction with a broader discussion of disk I/O, only some basic knowledge of files and directories organization is assumedgif.

Three sections, on the execution of tasks inside a process via the exec() family of system calls, on file descriptor manipulation, and on pipelines will close the paper.

A postscript version is available here.

Franco Callari