TOP Command Help in linux

# top

Line1: Gives System present time, up time of the machine, number of users logged in, Load average on system at 5, 10, 15 min interval.

Line2: Gives total number of process on the machine, number of running process, number of sleeping process, number of stopped process, number of Zambie process.

Line3: Gives you CPU details

Line4 & 5: Gives RAM and SWAP details.

Line6: To execute top command shortcuts

From Line7: dynamically displayed top process results.

l --To display or to hide load average line
t --To display or to hide task/cpu line
1 --To display or hide all other CPU's
m --to display or to hide RAM and SWAP details
s --To change the time interval for updating top results(value is in sec's)
R --To sort by PID number
u -- Press u then username to get only that user process details
P --To sort by CPU utilization
M --To sort by RAM utilization
c --To display or hide command full path
r --To renice a process, press r then the PID no then the renice value to renice a process.
k --To kill a process, press k then PID number then enter to kill a process
w --To save the modified configuration permanently.
q --To quit the top command.
h --for getting help on top command