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21 lines
485 B
21 lines
485 B
#!/bin/bash
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# 读取随机数据并转为 base64 编码
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head -n 50000 /dev/urandom | base64 > random;
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# 抽取 50000 行数据
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head -n 50000 random > random2;
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# rename
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rm random;
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mv random2 random;
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# 按 asc 排序
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sort --unique random > unique_sort_by_asc;
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# 按 num 排序
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sort --unique --numeric-sort random > unique_sort_by_num;
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# 追加写
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cat unique_sort_by_asc > totall;
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cat unique_sort_by_num >> totall;
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# 匹配并统计字符
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grep -o "com" totall | wc -l > number_of_com;
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