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Linux shell编程学习笔记(八) 文件

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1、comm比较命令

book@wzs:~/work/tq210/shell$ cat aa
line1
line2
line3
book@wzs:~/work/tq210/shell$ cat bb
line1
line2
line4
book@wzs:~/work/tq210/shell$ comm aa bb
                line1
                line2
line3
        line4
book@wzs:~/work/tq210/shell$ comm -1 aa bb
        line1
        line2
line4
book@wzs:~/work/tq210/shell$ comm -2 aa bb
        line1
        line2
line3
book@wzs:~/work/tq210/shell$ comm -3 aa bb
line3
        line4
book@wzs:~/work/tq210/shell$ comm -13 aa bb
line4book@wzs:~/work/tq210/shell$ ca



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