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Top Forums Shell Programming and Scripting How to extract logs between the current time and the last 15 minutes ? Post 302974072 by Corona688 on Wednesday 25th of May 2016 11:55:25 AM
Old 05-25-2016
Since your timestamps are in YYYY-MM-HH HH:MM:SS order you can compare dates with simple string comparisons here.

Code:
awk -v FIRST="2016-05-24T00:00:00.000" -v LAST="2016-05-24-T01:00:00.000" '
BEGIN {
        FIRST="["FIRST"-04:00]"
        LAST="["LAST"-04:00]"
}
$1 ~ /[0-9][0-9][0-9][0-9]-[0-9][0-9]-[0-9][0-9]/ {
        P=0;
        if(($1 >= FIRST) && ($1 <= LAST)) { P=1; }
}
P' inputfile

 

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CMP(1)								   User Commands							    CMP(1)

NAME
cmp - compare two files byte by byte SYNOPSIS
cmp [OPTION]... FILE1 [FILE2 [SKIP1 [SKIP2]]] DESCRIPTION
Compare two files byte by byte. -b --print-bytes Print differing bytes. -i SKIP --ignore-initial=SKIP Skip the first SKIP bytes of input. -i SKIP1:SKIP2 --ignore-initial=SKIP1:SKIP2 Skip the first SKIP1 bytes of FILE1 and the first SKIP2 bytes of FILE2. -l --verbose Output byte numbers and values of all differing bytes. -n LIMIT --bytes=LIMIT Compare at most LIMIT bytes. -s --quiet --silent Output nothing; yield exit status only. -v --version Output version info. --help Output this help. SKIP1 and SKIP2 are the number of bytes to skip in each file. SKIP values may be followed by the following multiplicative suffixes: kB 1000, K 1024, MB 1,000,000, M 1,048,576, GB 1,000,000,000, G 1,073,741,824, and so on for T, P, E, Z, Y. If a FILE is `-' or missing, read standard input. AUTHOR
Written by Torbjorn Granlund and David MacKenzie. REPORTING BUGS
Report bugs to <bug-gnu-utils@gnu.org>. COPYRIGHT
Copyright (C) 2002 Free Software Foundation, Inc. This program comes with NO WARRANTY, to the extent permitted by law. You may redistribute copies of this program under the terms of the GNU General Public License. For more information about these matters, see the file named COPYING. SEE ALSO
The full documentation for cmp is maintained as a Texinfo manual. If the info and cmp programs are properly installed at your site, the command info diff should give you access to the complete manual. diffutils 2.8.1 April 2002 CMP(1)
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