TY - BOOK AU - Petersen, Richard TI - UNIX Clearly Explained SN - 9780125521307 U1 - 005.432 PET PY - 1999/// CY - San Diego PB - AP Professional KW - Richard Petersen KW - UNIX clearly explained KW - Unix -- shell and kernel KW - Unix -- File system -- Files and directories KW - Unix -- Filters -- Standard editors KW - Unix -- operating system ER -