1.精確匹配:
leo@ubuntu:~/test$ cat file
48
484
483
leo@ubuntu:~/test$ grep "48" file
48
484
483
leo@ubuntu:~/test$ grep -e "48\>" file
48
2.
1.精確匹配:
leo@ubuntu:~/test$ cat file
48
484
483
leo@ubuntu:~/test$ grep "48" file
48
484
483
leo@ubuntu:~/test$ grep -e "48\>" file
48
2.