Computer-Systems-Labs/lab1/10215501415.sh

#两个字符串文件均由python生成
#按数字排序

#覆盖写
cat hw1.txt | sort | uniq -d > 1.txt
cat hw1.txt | sort -n | uniq -d > 1.txt

#追加写
cat hw1.txt | sort | uniq -d >> 2.txt
cat hw1.txt | sort -n | uniq -d >> 2.txt


#找出指定字符串
grep computer hw1-2.txt
grep -c computer hw1-2.txt