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15 regels
516 B
15 regels
516 B
#!/bash/bin
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#生成随机字符串
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for i in `seq 1000`;do echo $RANDOM | md5sum | cut -c 1-9 ;done > test.txt
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#按照字母顺序排列，输出unique行
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sort -u test.txt | uniq
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#按照数字顺序排列，输出unique行
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sort -u -n test.txt | uniq
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#以覆盖写的方式重定向到一个文件
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sort -u test.txt | uniq > ans1
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sort -u -n test.txt | uniq > ans1
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#以追加写的方式重定向到一个文件
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sort -u test.txt | uniq >> ans1
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sort -u -n test.txt | uniq >> ans1
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#寻找to
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grep -wo "to" test2.txt | wc-l
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