Merge pull request 'master' (#18) from 10215501433/Computer-Systems-Labs:master into master

Reviewed-on: https://gitea.shuishan.net.cn/52265903006/Computer-Systems-Labs/pulls/18

10215501451.md

@@ -1,21 +0,0 @@
-touch text1.txt
-
-for i in `seq 50000`;do echo $RANDOM | md5sum | cut -c 1-9 ;done >> text1.txt
-
-export LC_ALL=C
-
-sort text1.txt  | uniq
-
-sort -n text1.txt | uniq
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-sort text1.txt  | uniq > letter.txt
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-sort -n text1.txt | uniq >> number.txt
-
-
-
-echo -e "computer\ndata\nscience\nengineering\nscience\nengineeringc\ncomputer\ncomputer\necnu\ndata" > text2.txt
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-grep computer text2.txt
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-grep -c computer text2.txt