Shell Programming and Scripting

NOW=$(date +%s)

LEAST=$(awk "BEGIN{ print $NOW - 5443200}")

FILE=${1}

awk -v TPASSED=$LEAST -v NOWTIME=$NOW -v pattern1="entry_time" -v pattern2="comment_data" '
    BEGIN {
        RS = "{";
        FS = "{";
    }
    FNR == 1 {
        record_sep = RT;
    }
    {
        for (i = 1; i <= NF; i++ ) {
            if (( match( $i, pattern1 ) > 0 ) && ( match( $i, pattern2 ) > 0 ))
                    { print record_sep , $0; break; }
            S[$record_sep]

#  for(X in S) delete S[X];
#
#  for(N=2; N<=NF; N++)
#  {
#       gsub(/^[ \t]+/, "", $N);
#       split($N, A, "=");
#       D[A[1]] = A[2]
#       i = 3;
#       while (i in A)
#          D[A[1]] = D[A[1]] "=" A[i++];
#  }

            else
                    { print record_sep , $0; break; }
        }
    }
' ${FILE}

awk -v pattern1="entry_time" -v pattern2="comment_data" '
    BEGIN {
        srand(); now=srand();
        least=now-5443200;
        RS=""
        FS="="
        ORS="\n\n"
    }
    {
      p=t=0
      for(i=1;i<=NF;i++)  {
        j=i+1
        if($i==pattern2) p=1
        if($i==pattern1) t=$j
      }
      if((t==0 && p==0) || (t>least && p==1))
        print
    }
' $1

awk     'BEGIN                          {NOW=srand()}
         /comment_data/ &&
         match ($0,/entry_time=[0-9]*/) {if (NOW-substr ($0, RSTART+11,  RLENGTH-11) > 5184000) next}
         1
        ' RS= ORS="\n\n" file

awk     'BEGIN                          {LIMDAT=srand() - 5184000}
         /comment_data/ &&
         match ($0,/entry_time=[0-9]*/) {if (substr ($0, RSTART+11,  RLENGTH-11) < LIMDAT) next}
         1
        ' RS= ORS="\n\n" file
program {
modified_host_attributes=1
modified_service_attributes=1
enable_notifications=1
active_service_checks_enabled=1
passive_service_checks_enabled=1
active_host_checks_enabled=1
passive_host_checks_enabled=1
enable_event_handlers=1
obsess_over_services=0
obsess_over_hosts=0
check_service_freshness=1
check_host_freshness=0
enable_flap_detection=1
enable_failure_prediction=1
process_performance_data=0
global_host_event_handler=
global_service_event_handler=
next_comment_id=177361
next_downtime_id=1039
next_event_id=418881
next_problem_id=194777
next_notification_id=59919
}

hostcomment {
host_name=myhost01
entry_type=1
comment_id=1
source=0
persistent=1
entry_time=1415723753
expires=0
expire_time=0
author=hpsm
comment_data=IM023434343
}