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If u type top command in terminal u will get like this..........
For eg.

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
31253 user1 16 0 2112m 2.1g 1764 R 37.0 53.2 0:39.89 firefox
31249 root 16 0 2112m 2.1g 1764 R 15.5 53.2 0:38.29 gtk-gnash
31244 veer 16 0 2112m 2.1g 1764 R 13.6 53.2 0:40.05 metacity
31250 user1 16 0 2112m 2.1g 1764 R 13.6 53.2 0:41.23 gnome-terminal
31242 root 16 0 2112m 2.1g 1764 R 12.9 53.2 0:40.56 java
31238 user1 16 0 2112m 2.1g 1764 S 12.6 53.2 1:22.21 java

My Question is
Where they are getting information for USER , %CPU , %MEM & TIME+ in Linux ???????.
this i have to done in code ...without using gliptop ........so how they are getting these information from which directory and how they are calculating.........i had seen many question regarding this on net but no one gave proper answer ..........
If anyone knows about this information please tell......
Any help is greatly appreciated.......

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Last Post by vijayan121
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