shell - Using timestamp of a particular command in bash script? -


I am trying to use the timestamp of a special order that is already running on the line of History 10 Something is going on Grep "keyword" gives me output in the command line (my history preferences are set to include a timestamp), but I can not really understand this information as a script How to use it in

using it Is there a way or is there another way of getting a timestamp from a specific command? I'm trying to decide to run a command last time, and if it was longer than a specific time, then run it again. 

  export HISTTIMEFORMAT = "% F% T"   / Pre> 
 Then you can use this command 
 
  history | GRP LS | Grep -v grep | Tail-1 Note: I am searching for the  LS  command and I am printing a timestamp of  ls   
 
 / Strong> when it Last used was

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