time - How to get sar command value in 24 hour format (from 00:00:00 to 23:59:59) in Linux? -


I want to generate a file containing the cpu usage log in 24 hour format ( 00:00:00 to 23:59:59 ). I am using the sar command but it gives time in AM or PM format which is not necessary.

Sample: 

  12:01:01 AM All 1.33 0.00 1.06 0.24 0.00 97.37 12:02:01 All 1.30 0.00 1.02 0.04 0.00 97.64

Expected Result: 

  00:01:01 All 1.33 0.00 1.06 0.24 0.00 97.37 00:02:01 All 1.30 0.00 1.02 0.04 0.00 97.64

sir is a so-called localized program The output format is controlled by lc_ * environment variable. The variable LC_TIME is responsible for the production of time data. (See Man Locale ).

It seems that you are using a system where LC_TIME is set to en_US - a locale 12hours AM / PM By using the format (or LC_TIME was left empty, it would prompt you to use the default locale). You will need to use a local setting which is using 24 hour format. You can specify it at the command line: 

  LC_TIME = en_UK.utf8 sar

Output: 

  Linux 3.13.0-44- Generic (Desktop 1) 01/22/15 _x86_64_ (4 CPU) 00:00:01 CPU% User% Good% System% iowait% Stolen% Waste 00:02:01 All 2,26,0,00 0,41 0,71 0,00 96,63 00:04:01 All 2,68,0,00,072,46 , 00,00 96,13 ...

Note! If the locale en_UK.uft8 is not available on your system, then you need to use it: 

  sudo locale-gen en_UK.utf8  < / Pre> 
 Or you use  POSIX  or  C : 
 
  LC_TIME = 'POSIX' Sir LC_TIME = 'C' Can

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