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@ -0,0 +1,23 @@ |
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#!/bin/bash |
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#生成50行随机字符串 |
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for i in {1..50} |
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do |
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echo $RANDOM | md5sum | cut -c 1-9 >> random_50.txt |
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done |
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#将上述50行随机的字符串循环100次，得到5000行有规律的字符串 |
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times=1 |
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while((times<=100)) |
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do |
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head -n 50 random_50.txt >> random_5000.txt |
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times=`expr $times + 1` |
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done |
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#以覆盖写的方式，字母排序，输出unique行 |
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sort -u random_5000.txt > alph.txt |
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#以覆盖写的方式，数字排序，输出unique行 |
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sort -u -n random_5000.txt > number.txt |
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#以追加写的方式，字母排序，输出unique行 |
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sort -u random_5000.txt >> alph.txt |
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#以追加写的方式，数字排序，输出unique行 |
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sort -u -n random_5000.txt >> number.txt |
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#已经生成一个含有60个Computer的letter文件 |
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grep -c "Computer" letter.txt |
