How do you find the heap dump files in Linux? What is the role of the superuser What can be used to modify file permissions? What are the different commands available to check the disk usage? what is the usage of GREP command?

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Answers to Linux-related questions for Application Support Engineer role

Heap dump files can be found using the jmap command
The superuser has complete control over the system and can perform any action
chmod command can be used to modify file permissions
Commands like df, du, and ls can be used to check disk usage
GREP command is used to search for a specific pattern in a file or output