SAR monitoring shell script for Linux-based resources

. 1 ! # / Bin / the bash
 2  
. 3  IF [ " $ # " -LT- 2 ] # $ # number of arguments passed to the script or function
 . 4  the then 
. 5      echo  " the Usage: $ 0 Program "    # $ 0 script name
 . 6      Exit - . 1 ;
 . 7  Fi 
. 8  
. 9 SLEEP_TIME = $ . 1 
10 the LOG = $ 2 
. 11  
12 is  the while  to true 
13 is  do 
14      # threads
 15      thread_num SAR = `-q . 1  . 1 |awk  ' / ^ Average: / {Print $. 3} ' `
 16      # handles
 . 17      Open_files =` SAR -v . 1  . 1 | awk  ' / ^ Average: / {Print $. 3} ' `
 18 is      #cpu occupancy
 . 19      The cpu_info =` SAR -u . 1  . 1 | awk  ' / ^ Average: /. 8} {Print 100- $ ' `
 20 is      # memory usage
 21 is      MEM =` -R & lt SAR . 1  . 1 | awk  ' / ^ Average: / {Print ($ 3- $ 5- $. 6 )} / ($ 2 + $. 3) 100 * ' `
 22 is      #IO transmission amount
 23     SAR = -b `IO . 1  . 1 | awk  ' / ^ Average: / Print $ {2} ' `
 24      # output to a log file
 25      echo -e " ` DATE + " % Y-M-% D%% H:% M :% S " `, $ {} The cpu_info, MEM} {$, $ {IO}, {thread_num} $, $ {} Open_files " >> $ {} the LOG
 26 is      SLEEP $ SLEEP_TIME
 27  DONE