Linux Interview Questions

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“How do you change a list of words in a file from slug format to Capitalized words? (ie police_officer to Police Officer)”

“Given a binary tree, how would you write program for getting mirror image of tree in O(n) time? Is it possible ? Assume you have no constraints on space.”

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“How can you edit/change the file which has only read permission”

“How do you chmod a file to be executable if the chmod command itself isn't executable?”

“What is the Linux command to check on the CPU resources being utilized by a process?”

“What is the command for viewing memory management information in Linux?”

“Create a new user”

“What is a PTR DNS record used for?”

“Whiteboard a general LAMP stack and explain the process”

“Create a blank file without the use of a text editor”

110 of 24 Interview Questions