Chapter 11, Problem 15RQ

Which of the following commandsshould be run following the installationof a shared library to update the /etc/ld.so.conf and /etc/ld.so.cache files?a. lddb. updatedbc. ldconfigd. dpkg-reconfigure`

Please write down the Linux command for each question. 17.1  What command should be used to change the read, write and execute permission of a file? 17.2  The command for a user wants to delete recursively all files and subdirectory from current directory is 17.3  What is the command which edits the scheduler for automatic command executions at background? 17.4 This command let a user check the names of the groups that this a/c belongs to. 17.5  What do we expect to see if running “$ echo `expr 2 \*3`? 17.6  Upon booting up the OS, the latest kernel initialization daemon process that the Ubuntu distribution is using today is ____ 17 Like to find files with “.sh” extensions from current local directory to all its subdirectories, what is the command? 17.8  What is the command to find the IP address of a network card? 17.9 What is usually written on the first line in shell scripts? 17.10  Like to backup all files and subdirectories under /var/www, the output file name is today.tar. The…

In the lab you got the contents of Directory with Absolute Path /proc with following command.┌──(kali㉿kali)-[~]└─$ ls -la /proc      What are the file sizes of /proc/meminfo and /proc/cpuinfo ?____________ ____________ Q3. What are the file types of /proc/meminfo and /proc/cpuinfo ?____________ ____________ What type of file system is proc ?____________Hint use the man pages. Were does the information in the meminfo and cpuinfo files come from?____________