重定向和文件查找
Posted 七月流火
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2.过滤掉/etc/ssh/sshd_config文件中的注释行和空行，并把过滤出来的内容保存到ssh.txt文件中
[[email protected] ~]# grep -v ^# /etc/ssh/sshd_config|grep -v ^$ >ssh.txt [[email protected] ~]# cat ssh.txt Port 22 Port 222 Protocol 2 SyslogFacility AUTHPRIV PasswordAuthentication yes ChallengeResponseAuthentication no GSSAPIAuthentication yes GSSAPICleanupCredentials yes UsePAM yes AcceptEnv LANG LC_CTYPE LC_NUMERIC LC_TIME LC_COLLATE LC_MONETARY LC_MESSAGES AcceptEnv LC_PAPER LC_NAME LC_ADDRESS LC_TELEPHONE LC_MEASUREMENT AcceptEnv LC_IDENTIFICATION LC_ALL LANGUAGE AcceptEnv XMODIFIERS X11Forwarding yes UseDNS no Subsystem sftp /usr/libexec/openssh/sftp-server
或者也可使用以下命令，效果一样
[[email protected] ~]# grep -Ev "^$|^[#;]" /etc/ssh/sshd_config >ssh.txt [[email protected] ~]# cat ssh.txt Port 22 Port 222 Protocol 2 SyslogFacility AUTHPRIV PasswordAuthentication yes ChallengeResponseAuthentication no GSSAPIAuthentication yes GSSAPICleanupCredentials yes UsePAM yes AcceptEnv LANG LC_CTYPE LC_NUMERIC LC_TIME LC_COLLATE LC_MONETARY LC_MESSAGES AcceptEnv LC_PAPER LC_NAME LC_ADDRESS LC_TELEPHONE LC_MEASUREMENT AcceptEnv LC_IDENTIFICATION LC_ALL LANGUAGE AcceptEnv XMODIFIERS X11Forwarding yes UseDNS no Subsystem sftp /usr/libexec/openssh/sftp-server
1.启动httpd服务后，查找到系统中所有httpd进程，并把查找到的信息保存到httpd.txt中
[[email protected] ~]# service httpd restart|ps aux|grep httpd>httpd.txt [[email protected]od63 ~]# cat httpd.txt root 26693 0.0 0.1 106332 1780 pts/10 S+ 23:36 0:00 /bin/sh /sbin/service httpd restart root 26695 0.0 0.0 103308 876 pts/10 S+ 23:36 0:00 grep httpd
3.查看目录/tmp和/apach下面内容，把正确结果追加到ssh.txt，错误信息输入到黑洞中
1 [[email protected] ~]# ll -R /tmp /apach>>ssh.txt 2>/dev/null 2 [[email protected] ~]# cat ssh.txt 3 Port 22 4 Port 222 5 Protocol 2 6 SyslogFacility AUTHPRIV 7 PasswordAuthentication yes 8 ChallengeResponseAuthentication no 9 GSSAPIAuthentication yes 10 GSSAPICleanupCredentials yes 11 UsePAM yes 12 AcceptEnv LANG LC_CTYPE LC_NUMERIC LC_TIME LC_COLLATE LC_MONETARY LC_MESSAGES 13 AcceptEnv LC_PAPER LC_NAME LC_ADDRESS LC_TELEPHONE LC_MEASUREMENT 14 AcceptEnv LC_IDENTIFICATION LC_ALL LANGUAGE 15 AcceptEnv XMODIFIERS 16 X11Forwarding yes 17 UseDNS no 18 Subsystem sftp /usr/libexec/openssh/sftp-server 19 /tmp: 20 total 12 21 -rw-r--r-- 1 root root 1803 Apr 3 19:05 1 22 srwx------ 1 mongod mongod 0 Apr 1 13:31 mongodb-27017.sock 23 srwxrwxrwx 1 mysql mysql 0 Apr 5 18:47 mysql.sock 24 -rw-r--r-- 1 root root 1803 Apr 3 19:04 passwd 25 drwxr-xr-x 3 root root 4096 Apr 5 16:39 pear 26 27 /tmp/pear: 28 total 4 29 drwxr-xr-x 2 root root 4096 Apr 5 16:39 temp 30 31 /tmp/pear/temp: 32 total 0
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