rmerror@rmerror-desktop:~/Pulpit$ cat test.txt  | awk  -F ' ' '{if($1 ~ /.*job/){a = $1}else{print a" "$0}}'
//jobname1 table1
//jobname1 table2
//jobname1 table3
//jobname2 table4
//jobname2 table5
//jobname3 table6
//jobname3 table7
//jobname3 table8
//jobname3 table9