Red Hat System Administration I

Use the ssh command to log in to servera as the student user.

[student@workstation ~]$ ssh student@servera
...output omitted...
[student@servera ~]$ 

View package information and list files in the rhcsa-script-1.0.0-1.noarch.rpm package. Also view the script that runs when the package is installed or uninstalled.

1. View information for the rhcsa-script-1.0.0-1.noarch.rpm package.

   [student@servera ~]$ rpm -q -p rhcsa-script-1.0.0-1.noarch.rpm -i
   Name        : rhcsa-script
   Version     : 1.0.0
   Release     : 1
   Architecture: noarch
   Install Date: (not installed)
   Group       : System
   Size        : 1056
   License     : GPL
   Signature   : (none)
   Source RPM  : rhcsa-script-1.0.0-1.src.rpm
   Build Date  : Wed 06 Mar 2019 03:59:46 PM IST
   Build Host  : foundation0.ilt.example.com
   Relocations : (not relocatable)
   Packager    : Snehangshu Karmakar
   URL         : http://example.com
   Summary     : RHCSA Practice Script
   Description :
   A RHCSA practice script.
   The package changes the motd.

2. List files in the rhcsa-script-1.0.0-1.noarch.rpm package.

   [student@servera ~]$ rpm -q -p rhcsa-script-1.0.0-1.noarch.rpm -l
   /opt/rhcsa-script/mymotd

3. View the script that runs when the rhcsa-script-1.0.0-1.noarch.rpm package is installed or uninstalled.

   [student@servera ~]$ rpm -q -p rhcsa-script-1.0.0-1.noarch.rpm --scripts
   preinstall scriptlet (using /bin/sh):
   if [ "$1" == "2" ]; then
      if [ -e /etc/motd.orig ]; then
        mv -f /etc/motd.orig /etc/motd
      fi
   fi
   postinstall scriptlet (using /bin/sh):
   ...output omitted...

Extract the contents of the rhcsa-script-1.0.0-1.noarch.rpm package in the /home/student directory.

1. Use the rpm2cpio and cpio -tv commands to list the files in the rhcsa-script-1.0.0-1.noarch.rpm package.

   [student@servera ~]$ rpm2cpio rhcsa-script-1.0.0-1.noarch.rpm | cpio -tv
   -rw-r--r--   1 root     root    1056 Mar  6 15:59 ./opt/rhcsa-script/mymotd
   3 blocks

2. Extract all files from the rhcsa-script-1.0.0-1.noarch.rpm package in the /home/student directory. Use the rpm2cpio and cpio -idv commands to extract the files and create the leading directories where needed in verbose mode.

   [student@servera ~]$ rpm2cpio rhcsa-script-1.0.0-1.noarch.rpm | cpio -idv
   ./opt/rhcsa-script/mymotd
   3 blocks

3. List to verify the extracted files in the /home/student/opt directory.

   [student@servera ~]$ ls -lR opt
   opt:
   total 0
   drwxrwxr-x. 2 student student 20 Mar  7 14:44 rhcsa-script
   
   opt/rhcsa-script:
   total 4
   -rw-r--r--. 1 student student 1056 Mar  7 14:44 mymotd

Install the rhcsa-script-1.0.0-1.noarch.rpm package. Use the sudo command to gain superuser privileges to install the package.

1. Use the sudo rpm -ivh command to install the rhcsa-script-1.0.0-1.noarch.rpm RPM package.

   [student@servera ~]$ sudo rpm -ivh rhcsa-script-1.0.0-1.noarch.rpm
   [sudo] password for student: student
   Verifying...                          ################################# [100%]
   Preparing...                          ################################# [100%]
   Updating / installing...
      1:rhcsa-script-1.0.0-1             ################################# [100%]
   [student@servera ~]$ 

2. Use the rpm command to verify that the package is installed.

   [student@servera ~]$ rpm -q rhcsa-script
   rhcsa-script-1.0.0-1.noarch

Exit from servera.

[student@servera ~]$ exit
logout
Connection to servera closed.
[student@workstation ~]$