Basic Linux Interview Questions and Answers – Part II
Continuing the Interview Series, we are giving 10 Questions here, in this article. These questions and the questions in the future articles doesn’t necessarily means they were asked in any interview. We are presenting you an interactive learning platform through these kind of posts, which surely will be helpful.
Upon the analysis of comments in different forums on last article 11 Basic Linux Interview Questions of this series, it is important to mention here that to bring up a quality article to our readers. We give our time and money, and in return what we expect from you? Nothing. If you can’t praise our work, please don’t demoralize us from your negative comments.
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Q.1: Which command is used to record a user login session in a file?
Let’s record the user’s login session with script command as shown.
[root@tecmint ~]# script my-session-record.txt Script started, file is my-session-record.txt
The content of log file ‘my-session-record.txt’ can be views as:
[root@tecmint ~]# nano my-session-record.txt script started on Friday 22 November 2013 08:19:01 PM IST [root@tecmint ~]# ls ^[[0m^[[01;34mBinary^[[0m ^[[01;34mDocuments^[[0m ^[[01;34mMusic^[[0m $ ^[[01;34mDesktop^[[0m ^[[01;34mDownloads^[[0m my-session-record.txt ^[[01;34$
Q.2: The kernel log message can be viewed using which of the following command?
- ls -i
- None of the above
[root@tecmint ~]# dmesg Initializing cgroup subsys cpuset Initializing cgroup subsys cpu Linux version 2.6.32-279.el6.i686 (email@example.com) (gcc version 4.4.6 20120305 (Red Hat 4.4.6-4) (GCC) ) #1 SMP Fri Jun 22 10:59:55 UTC 2012 KERNEL supported cpus: Intel GenuineIntel AMD AuthenticAMD NSC Geode by NSC Cyrix CyrixInstead Centaur CentaurHauls Transmeta GenuineTMx86 Transmeta TransmetaCPU UMC UMC UMC UMC Disabled fast string operations BIOS-provided physical RAM map: ...
Q.3: Which command is used to display the release of Linux Kernel?
- uname -v
- uname -r
- uname -m
- uname -n
- uname -o
[root@tecmint ~]# uname -r 2.6.32-279.el6.i686
Q.4: Which command is used to identify the types of file?
[root@tecmint ~]# file wtop wtop: POSIX shell script text executable
Q.5: Which command locate the binary, source and man page of a command?
[root@tecmint ~]# whereis /usr/bin/ftp ftp: /usr/bin/ftp /usr/share/man/man1/ftp.1.gz
Q.6: When a user login, which files are called for user profile, by default??
[root@tecmint ~]# ls -al -rw-r--r--. 1 tecmint tecmint 176 May 11 2012 .bash_profile -rw-r--r--. 1 tecmint tecmint 124 May 11 2012 .bashrc
Q.7: The ‘resolv.conf’ file is a configuration file for?
[root@tecmint ~]# cat /etc/resolv.conf nameserver 172.16.16.94
Q.8: Which command is used to create soft link of a file?
- ln -s
- link -soft
- None of the above
[root@tecmint ~]# ln -s /etc/httpd/conf/httpd.conf httpd.original.conf
Q.9: The command ‘pwd’ is an alias of command ‘passwd’ in Linux?
[root@tecmint ~]# pwd /home/tecmint
[root@tecmint ~]# passwd Changing password for user root. New password: Retype new password:
Q.10: How will you check pci devices vendor and version on a Linux?
[root@tecmint ~]# lspci 00:00.0 Host bridge: Intel Corporation 5000P Chipset Memory Controller Hub (rev b1) 00:02.0 PCI bridge: Intel Corporation 5000 Series Chipset PCI Express x8 Port 2-3 (rev b1) 00:04.0 PCI bridge: Intel Corporation 5000 Series Chipset PCI Express x8 Port 4-5 (rev b1) 00:06.0 PCI bridge: Intel Corporation 5000 Series Chipset PCI Express x8 Port 6-7 (rev b1) 00:08.0 System peripheral: Intel Corporation 5000 Series Chipset DMA Engine (rev b1) ...
That’s all for now. I hope these above questions might be very helpful to you. In our next weekend we again come-up with some new set of questions. Till then stay healthy, tuned and connected to Tecmint.