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|Ans. PID - process identification number is an identification number that is automatically assigned to each process when it is created|
USER - User Name
PR - PR is the process actual priority
NI is the nice value, which is a user-space concept.
VIRT -Virtual Image (kb). The total amount of virtual memory used by the task.
RES - Resident size (kb). The non-swapped physical memory a task has used.
SHR - Shared Mem size (kb). The amount of shared memory used by a task.
S - Process Status. The status of the task which can be one of:
D = uninterruptible sleep
R = running
S = sleeping
T = traced or stopped
Z = zombie
%CPU - % CPU usage
%MEM - % MEM Usage
TIME - Total CPU time the task has used since it started.
COMMAND - Command which was used to execute the process
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