摘要： i am keeping asking this question for myself many times,, frankly iwanna to study the phD just causei think it is the relative faster way going abroad and phD is a good certificationfor me in abroad.B... 阅读全文

摘要： what is the love??,,, it is only the affection?? and it is noly the lucky chance to construct with the conterpart lover??i found that is wrong,, 阅读全文

摘要： Mr. Bao did not finish in time again, he has broken the fouth deadline he set together with the bosses.i kept silent for more than 1 month and was waiting the desetion of my bossesfight back or hold s... 阅读全文

摘要： Most UNIX machines store their files on magnetic disk drives. A disk drive is a device that can store information by making electrical imprints on a magnetic surface. One or more heads skim close to t... 阅读全文

摘要： This section discusses tips and tricks to make your use of the shell more efficient. File name completionBoth ksh and csh will perform file name completion for you. You can type in a partial file name... 阅读全文

摘要： The UNIX shell is a actually a user program that the kernel runs for you when you log in. There is usually more than one shell available on most UNIX systems. The most common shells available on UNIX ... 阅读全文

摘要： CONCEPT: The exact behavior of commands issued in the shell depends upon the execution environment provided by the shell. The UNIX shell maintains a set of environment variables that are used to provi... 阅读全文

摘要： One of the most basic operations you will need to perform on a UNIX system is text editing. Whether you are preparing a document, writing a program, or sending email to a colleague, you will need a ut... 阅读全文

摘要： When you log in to a UNIX system, the kernel starts a shell for you, and connects the shell to your terminal. When you execute a command from the shell, the shell creates a child process to execute th... 阅读全文

摘要： CONCEPT: The UNIX kernel can keep track of many processes at once, dividing its time between the jobs submitted to it. Each process submitted to the kernel is given a unique process ID. Single-tasking... 阅读全文