bash script logging setup-CodePudding

I have a script:

   #!/bin/bash
    gb=1
    ps aux | awk '{print $2 "\t\t" $6/1024 " MB\t\t" $11}' | while IFS=\n read PROCESS; do
    MEMORY=$( echo $PROCESS | awk '{print $2}' | cut -d'.' -f 1 )
    if [[ $MEMORY -gt $gb ]]
    then
    echo $PROCESS | grep  apache 
    pid=$(echo $PROCESS | grep apache | awk '{print $1}')
    kill $pid > /dev/null 2>&1
    fi
    done

it removes apache processes that are greater than the value specified in the "gb" variable

I need the script to log: the end date of the process, its pid and the username to which the process belonged.

How can the script be modified?

CodePudding user response：

Since I'm not interested in nuking processes on my own machine, that part is not tested, but something like this might be a good start:

#!/bin/sh

gb=1

ps aux | grep [a]pache | awk -vgb=$gb '
BEGIN {
      printf("%-16s  %8s  END-DATE\n", "USER", "PID");
}

{
    if ($6 < gb * 1024 * 1024)
       next;

    system("kill " $2)

    # Give the process 10s to terminate
    for (i = 0; i < 10; i  ) {
        if (system("kill -0 "$2)) {
           printf("%-16s  %8u  %s\n", $1, $2, strftime());
           next;
        }

        system("sleep 1");
    }

    printf("%-16s  %8u  DID-NOT-TERMINATE\n", $1, $2);
}'