Sponsored Content
Top Forums UNIX for Beginners Questions & Answers Extract lines if string found from last 30 min only Post 303030511 by rockstar on Tuesday 12th of February 2019 08:07:28 AM
Old 02-12-2019
Extract lines if string found from last 30 min only

Hi guys,

Appreciate your help as I am stuck with searching the logs for last 30 minutes from the current time. Current time is time when you execute the script and it will search for <string> through the logs for last 30 minutes only and if <string> found then print those lines only.


The logfile has 2 different dates as shown below but searching should limit to the lines which are
  • (1) Scanning should started with syntax <Feb 12,----date----PM UTC> as shown below and
  • (2) Scanning should avoid the scanning of lines (2019-02-12T12:26:59.842+0000: 45.152Smilie
I tried various awk and sed option but unable to scan the logs for last 30min. Using grep <string>, it does the scanning for <string>, pull all lines even from previous day as per string pattern match but I want to restrict the search string and print logs for last 30 min only if the strings match exist else no data to be returned.

logfile has below entries :
Code:
<Feb 12, 2019, 12:26:54,974 PM UTC> <Notice> <Security> <BEA-090082> <Security initializing using security realm myrealm.>
<Feb 12, 2019, 12:26:55,687 PM UTC> <Warning> <RMI> <BEA-080099> <RMIDiagnosticUtil.startObserver scheduled diag TimerTask.>
2019-02-12T12:26:59.842+0000: 45.152: [GC [PSYoungGen: 804554K->82927K(822784K)] 906587K->210120K(2627584K), 0.1191540 secs] [Times: user=0.41 sys=0.08, real=0.12 secs]
<Feb 12, 2019, 12:27:02,40 PM UTC> <Notice> <WebLogicServer> <BEA-000365> <Server state changed to STANDBY>
--------------------------------------------------------------------------------------

 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Best approach for a 10 min extract out of several log files with timestamped records

I have a task where I need to code a shell script to extract a 10 min range (10 min from now until now) extract of a log file. I taught I could simply use a command that would say something like Start=date - 10 min but I didn't find anything. Looks like the only solution would have to code a... (3 Replies)
Discussion started by: Browser_ice
3 Replies

2. Shell Programming and Scripting

Print lines after the search string until blank line is found

All I want is to look for the pattern in the file...If I found it at # places... I want print lines after those pattern(line) until I find a blank line. Log EXAMPLE : MT:Exception caught The following Numbers were affected: 1234 2345 2346 Error java.lang.InternalError:... (3 Replies)
Discussion started by: prash184u
3 Replies

3. Shell Programming and Scripting

Find min.max value if matching columns found using AWK

Input_ File : 2 3 4 5 1 1 0 1 2 1 -1 1 2 1 3 1 3 1 4 1 6 5 6 6 6 6 6 7 6 7 6 8 5 8 6 7 Desired output : 2 3 4 5 -1 1 4 1 6 5 6 8 5 8 6 7 (3 Replies)
Discussion started by: vasanth.vadalur
3 Replies

4. Shell Programming and Scripting

search and replace, when found, delete multiple lines, add new set of lines?

hey guys, I tried searching but most 'search and replace' questions are related to one liners. Say I have a file to be replaced that has the following: $ cat testing.txt TESTING AAA BBB CCC DDD EEE FFF GGG HHH ENDTESTING This is the input file: (3 Replies)
Discussion started by: DeuceLee
3 Replies

5. Shell Programming and Scripting

grep log lines logged in 10 min

A log files has lines (1 line per each log for a majority; a few for 2 lines per each log) May 31 14:00:11 rtprodapp1 local2:notice sudo: jdoe : TTY=pts/0 ; PWD=/home/jdoe ; USER=root ; COMMAND=/usr/bin/su - May 31 14:03:19 rtprodapp1 local2:notice sudo: jdoe : TTY=pts/0 ; PWD=/home/jdoe ;... (4 Replies)
Discussion started by: Daniel Gate
4 Replies

6. Shell Programming and Scripting

Get 20 lines above string found, and 35 below string

i want to search a log for a string. when that string is found, i want to grab the a set number of lines that came before the string, and a set number of lines that come after the string. so if i search for the word "Error" in the /var/log/messages file, how can I output the 20 lines that came... (4 Replies)
Discussion started by: SkySmart
4 Replies

7. UNIX for Advanced & Expert Users

Move a block of lines to file if string found in the block.

I have a "main" file which has blocks of data for each user defined by tags BEGIN and END. BEGIN ID_NUM:24879 USER:abc123 HOW:47M CMD1:xyz1 CMD2:arp2 STATE:active PROCESS:id60 END BEGIN ID_NUM:24880 USER:def123 HOW:4M CMD1:xyz1 CMD2:xyz2 STATE:running PROCESS:id64 END (7 Replies)
Discussion started by: grep_me
7 Replies

8. UNIX for Dummies Questions & Answers

Integrate MIN and MAX in a string

I need to use awk for this task ! input (fields are separated by ";"): 1%2%3%4%;AA 5%6%7%8%9;AA 1%2%3%4%5%6;BB 7%8%9%10%11%12;BBIn the 1st field there are patterns composed of numbers separated by "%". The 2nd field define groups (here two different groups called "AA" and "BB"). Records... (8 Replies)
Discussion started by: beca123456
8 Replies

9. Shell Programming and Scripting

Extract lines with min value, using two field separators.

I have a file with two ID columns followed by five columns of counts in fraction form. I'd like to print lines that have a count of at least 4 (so at least 4 in the numerator, e.g. 4/17) in at least one of the five columns. Input file: comp51820_c1_seq1 693 0/29 0/50 0/69 0/36 0/31... (6 Replies)
Discussion started by: pathunkathunk
6 Replies

10. Shell Programming and Scripting

Search String and extract few lines under the searched string

Need Assistance in shell programming... I have a huge file which has multiple stations and i wanted to search particular station and extract few lines from it and the rest is not needed Bold letters are the stations . The whole file has multiple stations . Below example i wanted to search... (4 Replies)
Discussion started by: ajayram_arya
4 Replies
GREP(1) 						      General Commands Manual							   GREP(1)

NAME
grep - search a file for lines containing a given pattern SYNOPSIS
grep [-elnsv] pattern [file] ... OPTIONS
-e -e pattern is the same as pattern -c Print a count of lines matched -i Ignore case -l Print file names, no lines -n Print line numbers -s Status only, no printed output -v Select lines that do not match EXAMPLES
grep mouse file # Find lines in file containing mouse grep [0-9] file # Print lines containing a digit DESCRIPTION
Grep searches one or more files (by default, stdin) and selects out all the lines that match the pattern. All the regular expressions accepted by ed and mined are allowed. In addition, + can be used instead of * to mean 1 or more occurrences, ? can be used to mean 0 or 1 occurrences, and | can be used between two regular expressions to mean either one of them. Parentheses can be used for grouping. If a match is found, exit status 0 is returned. If no match is found, exit status 1 is returned. If an error is detected, exit status 2 is returned. SEE ALSO
cgrep(1), fgrep(1), sed(1), awk(9). GREP(1)
All times are GMT -4. The time now is 01:35 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy