parse Log File, check for date, report results - regex

Question

I need to take the time stamp printed in After FTP connection and check whether it happened today.
I have a log file which contains the following:
---------------------------------------------------------------------
Opening connection for file1.dat
---------------------------------------------------------------------
---------------------------------------------------------------------
Before ftp connection -- time is -- Mon Oct 21 04:01:52 CEST 2013
---------------------------------------------------------------------
---------------------------------------------------------------------
After ftp connection -- time is Mon Oct 21 04:02:03 CEST 2013 .
---------------------------------------------------------------------
---------------------------------------------------------------------
Opening connection for file2.dat
---------------------------------------------------------------------
---------------------------------------------------------------------
Before ftp connection -- time is -- Wed Oct 23 04:02:03 CEST 2013
---------------------------------------------------------------------
---------------------------------------------------------------------
After ftp connection -- time is Wed Oct 23 04:02:04 CEST 2013 .
---------------------------------------------------------------------
Desired Output:
INPUT:file1.dat --> FAIL # since it is Oct 21st considering today is Oct 23.
INPUT:file2.dat --> PASS # since it is Oct 23rd.
INPUT:file3.dat --> FAIL # File information does not exist
What I tried so far:
grep "file1.dat\\|Before ftp connection\\|After ftp connection" logfilename
But this returns all the info that matches either file1.dat OR Before ftp connection OR After ftp connection. Considering the above sample, I get 5 lines out of which last 2 lines are from file2.dat:
Opening connection for file1.dat
Before ftp connection -- time is -- Mon Oct 21 04:01:52 CEST 2013
After ftp connection -- time is Mon Oct 21 04:02:03 CEST 2013 .
Before ftp connection -- time is -- Wed Oct 23 04:02:03 CEST 2013
After ftp connection -- time is Wed Oct 23 01:02:04 CEST 2013 .
I am stuck here. So ideally I need to take Mon Oct 21 04:02:03 CEST 2013 and compare and print the a result FAIL.

Answer 1

Defining the records correctly makes things a lot easier:
$ awk '{print $5,($0~"After.*"d?"PASS":"FAIL")}' d="$(date +'%a %b %d')" RS= file
file1.dat FAIL
file2.dat PASS

Answer 2

Use awk:
# read dates in shell variables
read x m d x x y < <(date)
awk -v f='file2.dat' -v m=$m -v d=$d -v y=$y '$0 ~ f {s=1; next}
s && /After ftp connection/ {
res = ($8==m && $9==d && $12==y) ? "PASS" : "FAIL";
print f, res; exit
}' file.log
file2.dat PASS
FOLLOW UP by OP:
I achieved the intended results by this:
check_success ()
{
CHK_DIR=/Archive
if [[ ! -d ${CHK_DIR} ]]; then
exit 1
elif [[ ! -d ${LOG_FOLDER} ]]; then
exit 1
fi
count_of_files=$(ls -al --time-style=+%D $CHK_DIR/*.dat | grep $(date +%D) | cut -f1 | awk '{ print $7}' | wc -l)
if [[ $count_of_files -lt 1 ]]; then
exit 2
fi
list_of_files=$(basename $(ls -al --time-style=+%D $CHK_DIR/*.dat | grep $(date +%D) | cut -f1 | awk '{ print $7}'))
for filename in $list_of_files
do
filename=basename filename
lg_name=$(grep -El "Opening.*$filename" $LOG_FOLDER/* | head -1 )
m=$(date +%b)
d=$(date +%d)
y=$(date +%Y)
output=$(awk -v f=$filename -v m=$m -v d=$d -v y=$y '$0 ~ f {s=1; next} s && /After ftp connection/ { res = ($8==m && $9==d && $12==y) ? "0" : "1"; print res; exit }' $lg_name)
if [[ ${output} != 0 ]]; then
exit 2
fi
done
exit 0
}
I used Anubhava's snippet, nevertheless Thanks to all the three champs.

Answer 3

It was tricky!
$ awk -vtoday=$(date "+%Y%m%d")
'/^Opening/ {file=$4}
/^After ftp connection/
{$1=$2=$3=$4=$5=$6=$NF="";
r="date -d \"" $0 "\" \"+%Y%m%d\""; r | getline dat;
if (today==dat) {print file, "PASS"}
else {print file, "FAIL"}}
' file
For file1.dat FAIL
For file2.dat PASS
Explanation
-vtoday=$(date "+%Y%m%d") gives today's date with "20131023" format
/^Opening/ {file=$4} gets lines starting with Opening and store the filename, that happens to be in the 4th field.
/^After ftp connection/ on lines starting with "After ftp connection...", do:
{$1=$2=$3=$4=$5=$6=$NF=""; delete up to 6th field and last one so the rest is the date info.
r="date -d \"" $0 "\" \"+%Y%m%d\""; r | getline dat; calculate the date on YYYYMMDD format of that line.
if (today==dat) {print file, "PASS} make comparison of dates.
else {print file, "FAIL"} idem.