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ok, I get it
Here you go


sort a.txt | awk -F'=' 'BEGIN {l=null} $1 ~ /Time|Server|Run|Tables/ {if($1 != l ) {l=$1; printf("\n%s ",$1)} else { printf("%s ",$2)}}'

To answer 2, to put the process in background, you will have to
1. fork from the parent.
2. terminate the parent so the child is owned by init.
3. and dissociate the tty by setting session...

oh my bad,


while read line;do
ts=`echo "$line"|cut -d',' -f1
rest=`echo "$line"|cut -d',' -f2-
d=`date --date="@${ts}" "+%d/%m%Y %H:%M:%S"`
echo "$d,$rest"
done < inputfile >...

i guess g is ignored by ls, the below one will work anyway

ls -1t|tail -1

1 lists the output of ls as a column
t sorts it by time
tail -1 lists the last item in the list

how did you compile this code. use the pthread library

cc -o outputfile c_code_file -lpthread