file manipulation unix - unix

Question

cat sample_file.txt(Extracted job info from Control-M)
upctm,pmdw_bip,pmdw_bip_mnt_35-FOLDistAutoRpt,Oct 7 2019 4:45 AM,Oct 7 2019 4:45 AM,1,1,Oct 6 2019 12:00 AM,Ended OK,3ppnc
upctm,pmdw_ddm,pmdw_ddm_dum_01-StartProjDCSDemand,Oct 17 2019 4:02 AM,Oct 17 2019 4:02 AM,3,1,Oct 16 2019 12:00 AM,Ended OK,3pqgq
I need to process this file into DB table(Oracle)
Bu I need to make sure that day is 2 number (example 7 to 07).
(example: Oct 07 2019 6:32 AM)
I used this command to get all the date in every line:
cat sample_file.txt | grep "," | while read line
do
l_start_date=`echo $line|cut -d ',' -f4`
l_end_date=`echo $line|cut -d ',' -f5`
l_order_date=`echo $line|cut -d ',' -f8`
echo $l_start_date
echo $l_end_date
echo $l_order_date
done
Output:
Oct 7 2019 4:45 AM
Oct 7 2019 4:45 AM
Oct 6 2019 12:00 AM
Oct 17 2019 4:02 AM
Oct 17 2019 4:02 AM
Oct 16 2019 12:00 AM
expected output:
FROM: Oct 7 2019 6:32 AM
To: Oct 07 2019 6:32 AM
I used this sed command but it add also to 2 number day (17)
sed command sed 's|,Oct |,Oct 0|g' sample_file.txt
Oct 17 was change to Oct 017
upctm,pmdw_bip,pmdw_bip_mnt_35-FOLDistAutoRpt,Oct 07 2019 4:45 AM,Oct 07 2019 4:45 AM,1,1,Oct 06 2019 12:00 AM,Ended OK,3ppnc
upctm,pmdw_ddm,pmdw_ddm_dum_01-StartProjDCSDemand,Oct 017 2019 4:02 AM,Oct 017 2019 4:02 AM,3,1,Oct 016 2019 12:00 AM,Ended OK,3pqgq

Answer 1

I wish it was easier, but I only managed the following:
awk.f:
function fmt(s) {
split(s,a," "); a[2]=substr(a[2]+100,2)
return a[1] " " a[2] " "a[3] " " a[4] " " a[5]
}
BEGIN {FS=",";OFS=","}
{gsub(/ +/," ");
$4=fmt($4); $5=fmt($5); $8=fmt($8);
print}
This is a little awk script that first removes superfluous blanks and then picks out particular columns (4,5 and 8) and reformats the second part of each date string into a two-digit number.
You run the script like this:
awk -f f.awk sample_file.txt
output:
upctm,pmdw_aud,pmdw_aud_ext_06-GAPAnalysYTD,Oct 07 2019 6:32 AM,Oct 07 2019 6:32 AM,17,17,Oct 06 2019 12:00 AM,Ended OK,3pu9v
upctm,pmdw_ddm,pmdw_ddm_dum_01-StartProjDCSDemand,Oct 07 2019 4:02 AM,Oct 07 2019 4:02 AM,3,1,Oct 06 2019 12:00 AM,Ended OK,3pqgq
upctm,pmdw_bip,pmdw_bip_mnt_35-FOLDistAutoRpt,Oct 07 2019 4:45 AM,Oct 07 2019 4:45 AM,1,1,Oct 06 2019 12:00 AM,Ended OK,3ppnc

Answer 2

With a fixed locale, you can make a fixed replacement like
sed -r 's/(Jan|Feb|Oct|Whatever) ([1-9]) /\1 0\2 /g' sample_file.txt