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Linux, 检查端口开放的七种方法telnet# yum -y install telnet # telnet 10.0.0.51 22 Trying 10.0.0.51... Connected to 10.0.0.51. Escape character is &
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 ~&nbs
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