習題練習03
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修改 tom 的家目錄爲 /home/tomcat,且其基本組爲 mail,uid號爲 1111,密碼爲 ‘123456’
[root@localhost home]# mkdir /home/tomcat [root@localhost ~]# useradd tom [root@localhost ~]# id tom uid=1001(tom) gid=1001(tom) groups=1001(tom) [root@localhost ~]# usermod -g mail -d /home/tomcat -u 1111 tom [root@localhost ~]# id tom uid=1111(tom) gid=12(mail) groups=12(mail) [root@localhost tomcat]# echo '123456' | passwd --stdin tom Changing password for user tom. passwd: all authentication tokens updated successfully.
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創建系統賬號名稱爲 admin,全名爲 administrator,賬戶的家目錄爲 /home/admin, 賬戶的有效時間爲 2022年12月24日,賬戶基本組爲root,附加組爲 bin,adm,mail
[root@localhost tomcat]# useradd -c administrator -d /home/admin -e 2022-12-24 -g root -G bin,adm,mail admin [root@localhost tomcat]# id admin uid=1112(admin) gid=0(root) groups=0(root),1(bin),4(adm),12(mail)
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壓縮系統的 /home 目錄,使用zip格式壓縮,並且命名爲student.tar.gz, 此文件要放在 /tmp/rhel7 目錄下
[root@localhost tomcat]# mkdir /tmp/rhel7 [root@localhost tomcat]# tar -czvf /tmp/rhel7/student.tar.gz /home/
gzip 與 bzip2 壓縮與解壓縮(-d) 這兩個指令壓縮文件,不能壓縮目錄
[root@localhost rhel7]# touch aa.txt [root@localhost rhel7]# gzip aa.txt [root@localhost rhel7]# ls aa.txt.gz student.tar [root@localhost rhel7]# gzip -d aa.txt.gz [root@localhost rhel7]# ls aa.txt student.tar [root@localhost rhel7]# bzip2 aa.txt [root@localhost rhel7]# ls aa.txt.bz2 home student.tar.gz [root@localhost rhel7]# tar -xjvf aa.txt.bz2 [root@localhost rhel7]# ls aa.txt.bz2 home student.tar.gz [root@localhost rhel7]# bzip2 -d aa.txt.bz2 [root@localhost rhel7]# ls aa.txt home student.tar.gz
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查看 init* 文件末尾2KB 的內容
[root@localhost ~]# tail -c 2K /root/initial-setup-ks.cfg
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創建以下幾個目錄(teach,office,finance,admin,market)
[root@localhost ~]# mkdir -p /share/{teach,office,finance,admin,market} [root@localhost ~]# cd /share/ [root@localhost share]# ls admin finance market office teach
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配置 yum 源
[root@localhost share]# mkdir /mnt/cdrom [root@localhost share]# mount /dev/cdrom /mnt/cdrom/ [root@localhost share]# cd /etc/yum.repos.d/ [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