#!/bin/bash
 
start_timestamps=("[00:00:00:000][01-01-2024]")
end_timestamps=("[23:59:59:999][31-12-2024]")
 
awk -v starts="${start_timestamps[*]}" -v ends="${end_timestamps[*]}" '
  function parsedate(date) {
        split(date, a, /[]:[-]+/)
        return a[8] "-" a[7] "-" a[6] "T" a[1] ":" a[2] ":" a[3] ":" a[4] "." a[5]
  }
  BEGIN {
    split(starts, start_arr, " ")
    split(ends, end_arr, " ")
    for (i in start_arr) {
        st[i] = parsedate(start_arr[i])
        et[i] = parsedate(end_arr[i])
    }
    log_count = 0
  }
  /^\[[0-9]{2}:[0-9]{2}:[0-9]{2}:[0-9]{3}\]\[[0-3][0-9]-[01][0-9]-[0-9]{4}\]/{
    p = parsedate($0)
print("# p", p)
    printing = 0
    for (i in st) {
        if (p >= st[i] && p <= et[i]) {
            printing = 1
print("# printing := 1; p >= " st[i] " && p <= ! " et[i])
            log_count = 1
            break
        }
    }
  }
  printing
  END {
    if (log_count == 0) {
        print "Nothing was logged at this given time frame"
    }
  }'

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WzE3OjAyOjEyOjE2M11bMDEtMDMtMjAyM11zb21lIGxvZyBoZXJlCmEKYgpjClsxNzowMjoxMjoxODVdWzAxLTAzLTIwMjNdVGltZSB0YWtlbiAgIDogMTEKWzE3OjAyOjEyOjE2MV1bMDEtMDMtMjAyNF1zb21lIGxvZyBpbmZvIGhlcmU6CnN0ZXAxCnN0ZXAyCnN0ZXAzClsxNzowMjoxMjoxNjNdWzAxLTAzLTIwMjRdc29tZSBsb2cgaGVyZQphCmIKYwpbMTc6MDI6MTI6MTg1XVswMS0wMy0yMDI0XVRpbWUgdGFrZW4gICA6IDExClsxNzowMjoxMjoxNjNdWzAxLTAzLTIwMjVdc29tZSBsb2cgaGVyZQphCmIKYwpbMTc6MDI6MTI6MTg1XVswMS0wMy0yMDI1XVRpbWUgdGFrZW4gICA6IDExCg==

[17:02:12:163][01-03-2023]some log here
a
b
c
[17:02:12:185][01-03-2023]Time taken   : 11
[17:02:12:161][01-03-2024]some log info here:
step1
step2
step3
[17:02:12:163][01-03-2024]some log here
a
b
c
[17:02:12:185][01-03-2024]Time taken   : 11
[17:02:12:163][01-03-2025]some log here
a
b
c
[17:02:12:185][01-03-2025]Time taken   : 11