上传文件至 'lab1'

lab1/hw1.sh

@@ -0,0 +1,11 @@
+sort data.txt | uniq -u
+sort -n data.txt | uniq -u
+sort data.txt > data2
+sort -n data.txt > data3
+sort data.txt >> data2
+sort -n data.txt >> data3
+
+grep ABC data.txt
+grep -o ABC data.txt
+grep ABC data.txt | wc -l
+grep -o ABC data.txt | wc