代写C++/C:CS代码代写之C语言过机测Homework #6 - Programming part - C++代写

3.1 Reference executablesWorking executables for all the following problems are available on the CSIF class account， in directory /home/cs30/public/hw6.4 Programming exercises4.1 Simple grepFirst released 43 years ago （！），grepis one of the oldest command-line utilities in the UNIX ecosystem.grep is used to print the lines that it receives if they match a certain pattern. This tool makes it possible to detect if a file contains a certain word for example， and if so， optionally at which line（s）.Write program simple_grep.c that reads entire lines from the user， and only prints back those which match any of the patterns received as program arguments， as illustrated in the following example.$ cat udhr_art26.txt （1） Everyone has the right to education. Education shall be free， at least in the elementary and fundamental stages. Elementary education shall be compulsory. Technical and professional education shall be made generally available and higher education shall be equally accessible to all on the basis of merit. （2） Education shall be directed to the full development of the human personality and to the strengthening of respect for human rights and fundamental freedoms. It shall promote understanding， tolerance and friendship among all nations， racial or religious groups， and shall further the activities of the United Nations for the maintenance of peace. （3） Parents have a prior right to choose the kind of education that shall be given to their children. $ ./simple_grep right FREEDOM their children udhr_art26.txt （1） Everyone has the right to education. Education shall be for human rights and fundamental freedoms. It shall promote （3） Parents have a prior right to choose the kind of education that shall be given to their children. $ ./simple_grep -n right FREEDOM their children udhr_art26.txt 1：（1） Everyone has the right to education. Education shall be 9：for human rights and fundamental freedoms. It shall promote 13：（3） Parents have a prior right to choose the kind of 14：education that shall be given to their children. $ ./simple_grep Usage： grep [-n] word $ echo $？ 1 $Here are a list of requirements， assumptions and hints

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