Shulou(Shulou.com)06/02 Report--

1, display/etc directory, with non-letter beginning, followed by a letter and other arbitrary length of any character files or directories

Copy all files or directories starting with p and ending with a non-number in/etc directory to/tmp/mytest1 directory.

3. Convert the contents of the/etc/issue file to uppercase and save them to the/tmp/issue.out file

Please summarize the description of user and group management class commands and complete the following exercises:

(1), create group distro with GID 2019;

(2)Create user mandriva with ID number 1005; basic group is distro;

(3)Create user mageia with ID number 1100 and home directory/home/linux;

(4)Add a password to user mageia, the password is mageedu, and set the user password to expire in 7 days.

(5)Remove mandriva but keep its home directory;

(6)Create user slackware with ID number 2002, basic group distro, additional group peguin;

(7)Change the default shell of slackware to/bin/tcsh;

(8)Add additional groups admins for user slackware;

1

[root@CentOS7 ~]# touch /etc/1.txt

[root@CentOS7 ~]# touch /etc/1a.txt

[root@CentOS7 ~]# ls /etc/[^[:alpha:]][a-z]*

/etc/1a.txt

2

[root@CentOS7 ~]# rm -rf /tmp/mytest1/*

[root@CentOS7 ~]# mkdir -p /tmp/mytest1/

[root@CentOS7 ~]# cp -rf /etc/p*[^0-9] /tmp/mytest1/

[root@CentOS7 ~]# ll /tmp/mytest1/

total 52

drwxr-xr-x. 2 root root 4096 Nov 12 22:24 pam.d

-rw-r--r--. 1 root root 68 Nov 12 22:24 papersize

-rw-r--r--. 1 root root 2519 Nov 12 22:24 passwd

-rw-r--r--. 1 root root 2482 Nov 12 22:24 passwd-

-rw-r--r--. 1 root root 1362 Nov 12 22:24 pbm2ppa.conf

-rw-r--r--. 1 root root 2872 Nov 12 22:24 pinforc

drwxr-xr-x. 12 root root 151 Nov 12 22:24 pki

drwxr-xr-x. 2 root root 28 Nov 12 22:24 plymouth

drwxr-xr-x. 5 root root 52 Nov 12 22:24 pm

-rw-r--r--. 1 root root 6300 Nov 12 22:24 pnm2ppa.conf

drwxr-xr-x. 2 root root 6 Nov 12 22:24 popt.d

drwxr-xr-x. 2 root root 154 Nov 12 22:24 postfix

drwxr-xr-x. 3 root root 219 Nov 12 22:24 ppp

drwxr-xr-x. 2 root root 105 Nov 12 22:24 prelink.conf.d

-rw-r--r--. 1 root root 233 Nov 12 22:24 printcap

-rw-r--r--. 1 root root 1818 Nov 12 22:24 profile

drwxr-xr-x. 2 root root 4096 Nov 12 22:24 profile.d

-rw-r--r--. 1 root root 6545 Nov 12 22:24 protocols

drwxr-xr-x. 2 root root 79 Nov 12 22:24 pulse

drwxr-xr-x. 2 root root 23 Nov 12 22:24 purple

drwxr-xr-x. 2 root root 35 Nov 12 22:24 python

[root@CentOS7 ~]#

3

[root@CentOS7 ~]# tr [:lower:] [:upper:]

/data/3.log

[root@CentOS7 ~]# cat /etc/issue

\S

Kernel \r on an \m

[root@CentOS7 ~]# cat /data/3.log

\S

KERNEL \R ON AN \M

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