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top interview Questions and Answers
Q. How can I append some lines in an existing file inLinux?
A. $cat >> file name and hit enter.
You can append lines below the existing lines of the file. .
Q. What is FIFO and LIFO in Linux / Unix ?
A. FIFO is first in first out
and
LIFO is last in first out..
TipLinux interview process as linux admin you have to focus on server operating system concepts to explain a project model to crack the Linux admin interview
Q. What is PATH variable in Linux / Unix?
A. PATH is an environmental variable which contains the path of the command files for execution at runtime and we can change the paths inside the PATH variable.
Q. How can I kill a process in Linux / Unix?
A. first use $PS –ef command and get the PID of the process you want to kill.
Then use kill -9 command to kill the process.
Its very important question for Troubleshooting.
Q. How can I check the memory size of a linux/unix machine ?
A. Use Free –m or free –G command to check the memory size of a linux machine.
Q. How to check disk utilization of a linux server?
A. Use du command to check the disk utilization.
$du
in advance you want to see a specify partition with all the information use $df -hT to know clear details about connected harddisk information with available space as well used space..
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