Linux Common Command Exercises

Practice One:

1. Create the following folder in the/tmp directory A_b,c_b,a_d,c_d

2. Create a root tree in the/tmp directory

Exercise two:

Create an empty directory in the/tmp/mytest directory that begins with TestDir, followed by a date and time, as testdir-2014-01-01_19:55:33)

Exercise Three:

Copy/etc All files or directories that start with P and that end in non-digits to the/tmp/mytest directory

Exercise Four:

1. Display the shell of each user on the current system

2. Displays various shells used by all users of the current system

3. Remove the 7th line of the/etc/inittab file

4. Remove the user name of the 7th user in the/etc/passwd file

5. Statistics/etc The number of files beginning with the case p

Exercise Five:

Manually add a user Tuser

Exercise VI:

1. Display the shell of each user on the current system

2. Display various shells used by all users on the current system

3. Remove the 7th line of the/etc/inittab file

4. Remove the user name of the 7th user in the/etc/passwd file

5, statistics and other directory under the size of the number of files to begin with

Practice VII:

1. Create the user Mandriva, whose ID is 2200, the base group is distro, the group ID is 3300, and the additional group is pig;

2. Create the user Gentoo, whose full name is "Gentoo", the default shell is/bin/tcsh;

3. Change the UID of the Mandriva to 4400, the basic group is Linux, the additional group is distro and Gentoo;

4. Group Gentoo add password, and set its minimum password age is 2 days, the maximum is 60 days, warning for 3 days, inactive period is 7 days.

Practice Eight:

1. Create a new user with no home directory OpenStack;

Useradd-m OpenStack

2. Copy/etc/skel to/home/openstack;

Cp-r/etc/sekl/home/openstack

3. The main reorganization of/home/openstack and its internal documents is OpenStack;

4./home/openstack and its internal files, group and other users do not have any access rights

Chmod-r go=/home/openstack

Linux Common Command Exercises