马哥教育网络班22期第五周课程练习1

1、cat /etc/passwd  | egrep "^root|^fedora|^user1"| cut -d":" -f1,7 

2、egrep -o  "[^[:space:]]+\(\)" /etc/rc.d/init.d/functions  

3、echo "/etc/rc.d/init.d/functions" | egrep  -o '[^/]+/?$' | egrep -o '[^/]+'

4、echo /etc/rc.d/ | egrep  -o '[^/]+/?$' | egrep -o '[^/]+'

5、ifconfig | egrep -o "[1-9][0-9]?|1[0-9]{2}|2[0-4][0-9]|25[0-5]"

ifconfig | egrep -o "(\<([0,1]?[0-9]?[0-9]|2[0-4][0-9]|25[0-5])\>\.){3}\<([0,1]?[0-9]?[0-9]|2[0-4][0-9]|25[0-5])\>"

6、egrep "[[:alnum:]]+_?[[:alnum:]]+@[[:alnum:]]+\.[[:alpha:]]+\.?[[:alpha:]]+?"

7、find /var -user root -a -group mail -exec ls -ld {} \; 

8、find / -nogroup  -o -nouser 

find / \( -nouser -o -nogroup \) -atime -3

9、find /etc -type f -perm -222

10、find /etc -size +1M -type f 

11、find /etc/init.d/ -perm -113

12、find /usr -not \( -user root -o -user bin -o -user hadoop \) -type f 

13、find /etc -not -perm /222 

14、find /etc/ -mtime -7 -not \( -user root -o -user hadoop \) -type f 

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评论列表(1条)

  • 马哥教育
    马哥教育 2016-09-19 18:23

    下次最好能把题目也写上