Top Linux Commands Interview Questions :: ALLInterview.com http://www.allinterview.com Top Linux Commands Interview Questions en-us how to see unallocated hard disk space on linux http://www.allinterview.com/showanswers/75078.html simply type cat /proc/partitions what is user mode &amp; kernel mode? http://www.allinterview.com/showanswers/67083.html KERNEL-MODE The kernel-mode programs run in the background, making sure everything runs smoothly - things like printer drivers, display drivers, drivers that interface with the monitor, keyboard, mouse, etc. These programs all run in such a way what is the UID and GID of root user? Can a normal user can change th http://www.allinterview.com/showanswers/72148.html the root UID/GID is 0 (zero). which is why he can able to intervene in all normal users files even though he don't had permission. A normal user will don't have the permission to change ownership of file. The command to change ownership how to create a new file command http://www.allinterview.com/showanswers/57694.html create new file touch and give filename it will create new file why do u want to join this company http://www.allinterview.com/showanswers/60429.html becoz i am unemployed, i wan a job n need money. which command is used to see all the system configuration? like hardw http://www.allinterview.com/showanswers/85065.html lspci -vv how do u find remote machine operating system and version? http://www.allinterview.com/showanswers/72608.html XProbe what is soft mount and hard mount? i have to make permanent nfs mount http://www.allinterview.com/showanswers/72147.html to make permanent nfs mount, write it into /etc/fstab server<ip> nfsmount mountpoint filesystem defaults 0 0 192.168.0.1 /var/ftp/pub /mnt nfs defaults 0 0 What does the top command display? http://www.allinterview.com/showanswers/7150.html top command displays the current ammount of mamory occupied by the currently executing processes and the details. what is the difference between service and process? http://www.allinterview.com/showanswers/93246.html A process is any piece of software that is running on a computer. For example, your anti-virus software runs in the background as a process, which was automatically started when the computer booted. Some processes start when your computer boots, in unix how to change old name to new name http://www.allinterview.com/showanswers/57700.html mv <old name> <new name> // for rename the file in the same directory mv <old name> /<absolute path>/<new name> for rename and move the file in other diretory. what are the linux boot files? http://www.allinterview.com/showanswers/115748.html Lilo and GRUB both are boot loader.. difference between Tcp and udp http://www.allinterview.com/showanswers/10679.html TCP(Transmission Control Protocol). TCP is a connection- oriented protocol, a connection can be made from client to server, and from then on any data can be sent along that connection. Reliable - when you send a message along a TCP socket, y what is the command to uninstall processes in linux? http://www.allinterview.com/showanswers/116658.html first find which package you want unistall than rpm -e sendmail* (this is the package name) or yum e sendmail* (than package name) what is initrd image? http://www.allinterview.com/showanswers/65243.html initrd image is the initial ram disk image While the system getting booted the kernel image will get loaded into the main memory after POST to improve I/O performance. this initrd image will contain the same version number of kernel and if we fa