摘要： CONCEPT: UNIX allows you to connect processes, by letting the standard output of one process feed into the standard input of another process. That mechanism is called a pipe. Connecting simple proces... 阅读全文

摘要： CONCEPT: Every program you run from the shell opens three files: Standard input, standard output, and standard error. The files provide the primary means of communications between the programs, and ex... 阅读全文

摘要： Here is an index to the topics in this section: The UNIX filesystem structure File and directory permissions Changing directories Listing the contents of a directory ... 阅读全文

摘要： The shell is perhaps the most important program on the UNIX system, from the end-user's standpoint. The shell is your interface with the UNIX system, the middleman between you and the kernel. CONCEPT... 阅读全文

摘要： To ensure security and organization on a system with many users, UNIX machines employ a system of user accounts. The user accounting features of UNIX provide a basis for analysis and control of system... 阅读全文

摘要： There are many ways that you can access a UNIX system. The main mode of access to a UNIX machine is through a terminal, which usually includes a keyboard, and a video monitor. For each terminal connec... 阅读全文

摘要： UNIX is an operating system. The job of an operating system is to orchestrate the various parts of the computer -- the processor, the on-board memory, the disk drives, keyboards, video monitors, etc. ... 阅读全文

摘要： For this month, we went over the process what we did last half year and made clear what the relations were between contigs or between contigs and the reference... last week,,,i designed more than 300... 阅读全文

摘要： what it the obession??? several days ago i caught this word and found the explanation--the thing that you can't stop worrying about... and i remebered a case that GRE teacher told me...GRE word wer... 阅读全文

摘要： Understand a ladyasCHANEL does... Design a lady with CHANEL... 阅读全文