Shell Programming and Scripting

#!/usr/bin/awk -f
BEGIN {
       KEY=""
       DATA=""
}
{
       if($1 != KEY){
               if(KEY!=""){
                       printf(" %s %s\n",
 KEY, DATA)
               }
               DATA=$2
       } else {
               DATA=DATA" "$2
       }
       KEY=$1
}
END {
       printf(" %s %s\n", KEY, DATA)
}

#!/usr/bin/awk -f
BEGIN {
       KEY=""
       DATA=""
}
{
       if($1 != KEY){
               if(KEY!=""){
                       printf(" %s %s\n",
 KEY, DATA)
               }
               DATA=$2" "$3
       } else {
               DATA=DATA" "$2" "$3
       }
       KEY=$1
}
END {
       printf(" %s %s\n", KEY, DATA)
}

#!/usr/bin/awk -f

BEGIN {
   msg_id=""
}

{
   if ($1 != msg_id) {
      if (msg_id != "")
          print outstr
      msg_id=$1; stime=$2
      outstr=" "$1" "$2" "$3
   } else
      outstr=outstr" "$2" ("$3-stime"s) "
}

END {
   print outstr
}

 1JRkPs-0008m8-Fd 7230901  domain.com (1s)  abc.com (60s)
 1JRkaH-0009E0-VZ 7231546  domain.co.uk (1s)
 1JRl5D-000AMD-22 7229863  123.com (1s)
 1JRl66-000AOR-AZ 7229918  xyz.co.za (1s)

awk '{
keys[$1]++
time[$1,keys[$1]]=$NF
if ( NF > 2 )
   dat[$1,keys[$1]]=$2
}
END {
for ( it in keys )
   {
   for (i=1;i<=keys[it];i++)
       if ( i == 1 )
             printf("%s\n%s",it,it)
       else
          printf(" %s (%ds) ",dat[it,i],time[it,i]-time[it,1])
      printf("\n")
   } 
}' log_file
1JRkPs-0008m8-Fd
1JRkPs-0008m8-Fd domain.com (1s) abc.com (60s) 
1JRkaH-0009E0-VZ
1JRkaH-0009E0-VZ domain.co.uk (1s) 
1JRl66-000AOR-AZ
1JRl66-000AOR-AZ xyz.co.za (1s) 
1JRl5D-000AMD-22
1JRl5D-000AMD-22 123.com (1s)