标签：小知识
文件内容如下，要求显示文件内容对应的行号[root@gaoyang ~ 13:01:16]# cat 123.txt name:i am gaoyang birthday:19961025 what the fuck!!!!
1、cat -n 123.txt
[root@gaoyang ~ 13:54:38]# cat -n 123.txt 1 name:i am gaoyang 2 3 birthday:19961025 4 5 what the fuck!!!!
2、nl 123.txt
[root@gaoyang ~ 13:57:56]# nl 123.txt #===>不显示空行 1 name:i am gaoyang 2 birthday:19961025 3 what the fuck!!!!
3、grep -n ".*" 123.txt
[root@gaoyang ~ 13:58:56]# grep -n ".*" 123.txt 1:name:i am gaoyang 2: 3:birthday:19961025 4: 5:what the fuck!!!!
4、awk '{print NR,$0}' 123.txt
[root@gaoyang ~ 14:01:15]# awk '{print NR,$0}' 123.txt
1 name:i am gaoyang
2
3 birthday:19961025
4
5 what the fuck!!!!5、less -N 123.txt
[root@gaoyang ~ 14:01:19]# less -N 123.txt 1 name:i am gaoyang 2 3 birthday:19961025 4 5 what the fuck!!!! 123.txt (END)
6、sed '=' 123.txt |sed 'N;s#\n# #g'
[root@gaoyang ~ 14:02:23]# sed '=' 123.txt |sed 'N;s#\n# #g' 1 name:i am gaoyang 2 3 birthday:19961025 4 5 what the fuck!!!!
7、vim 123.txt ：set nu
1 name:i am gaoyang 2 3 birthday:19961025 4 5 what the fuck!!!! :set nu
标签：小知识
原文地址：http://blog.51cto.com/12652891/2116505
