Linux 习题练习-02（grep、find命令、yum源配置）

	[root@localhost ~]# grep 'boot' /root/initial-setup-ks.cfg | wc -l

	[root@localhost ~]# grep -c 'boot' /root/initial-setup-ks.cfg 

	[root@localhost ~]# grep -n 'boot' /root/initial-setup-ks.cfg 

	[root@localhost ~]# ps -aux > /root/ps.log 

	[root@localhost ~]# grep '177[45]' ps.log 

	[root@localhost ~]# grep '[0-9][0-9][0-9]2' /root/ps.log 

	[root@localhost ~]# grep '[0-9][0-9][0-9]...2' /root/ps.log 

	[root@localhost ~]# grep '[0-9][0-9][0-9]...[Ss]' /root/ps.log 

	[root@localhost ~]# find . ! -type d

	[root@localhost yum.repos.d]# find / -user harry -type f -exec cp {} /root/finder \; 2> /dev/null

		[root@localhost ~]# find / -newer initial-setup-ks.cfg ! -newer ps.log -exec ls -lh {} \;

		[root@localhost ~]# wc -l /etc/passwd

		39 /etc/passwd

	[root@localhost Desktop]# mkdir /mnt/cdrom

	[root@localhost Desktop]# mount /dev/sr0 /mnt/cdrom 

	[root@localhost yum]# cd /etc/yum.repos.d/

	[root@localhost yum.repos.d]# ls

	[root@localhost yum.repos.d]# rm -rf *

	[root@localhost yum.repos.d]# vim dvd.repo

	[dvd]

	name = dvd

	baseurl = file:///mnt/cdrom

	gpgcheck = 0

	enabled = 1

	[root@localhost yum.repos.d]# yum clean all

	[root@localhost yum.repos.d]# yum repolist all