How to search backwards in a log file by timestamp of entries?
Hello. I'm not nearly good enough with awk/perl to create the logfile scraping script that my boss is insisting we need immediately. Here is a brief 3-line excerpt from the access.log file in question (actual URL domain changed to 'aaa.com'):
So the lines start with an IP-address, followed by date, and then time. We want to only search the last 10 minutes in the file (say if current time is 11:40, we want to only look at lines that go back to 11:30). I've got the code to convert the current time into scalar, subtract 600 secs, and store that time as single character variables (ie: $a = 1, $b = 1, $c = 3, $d = 0).
But I need help with an awk (or other?) code line that will parse each entry in the log file to skip over the IP and the date, and match against the TIMEstamp only. And what's more, we'd like it to do so starting from the bottom of the file (ie: with the most recent entry) and go backwards......and then hopefully stop the search when it hits the first entry that does NOT fall within the past 10-min (because log file is very, very large!).
Any and all help or suggestions would be monumentally appreciated.
Hi
From shell script i am invoking sqlplus to connect to oracle database and then i spool a csv file as with output. What i want to do is to change the file name with timestamp on it so after spooling finish shell script change file name with time stamp.
can someone help me to do that .
Thanks... (2 Replies)
how to copy lines from a log file based on timestamp.
INFO (RbrProcessFlifoEventSessionEJB.java:processFlight:274) - E_20080521_110754_967: rbrAciInfoObjects listing complete!
INFO (RbrPnrProcessEventSessionEJB.java:processFlight:197) - Event Seq: 1647575217; Carrier: UA; Flt#: 0106; Origin:... (1 Reply)
Hi,
I have a variable , lets say
a=/disk1/net/first.ksh
i need to grep "first.ksh"
everytime "a" gets changed dynamically and i do not know how many '"/" are there in my variable.
Can somebody help me out. (9 Replies)
Hi,
I have to search for first occurenceof string str1 in a file(>5GB).
Now, after I have that , I have to search backwards from that offset till I get another string str2. I should also be able to get the
new string str2's offset.
Similarly, I look for last occurence of str1 and then... (1 Reply)
Hi,
Using sed awk or perl I am trying to do something similar to
https://www.unix.com/shell-programming-scripting/105887-sed-awk-concatenate-lines-until-blank-line-2.html
but my requirement is slightly different. What I am trying to accomplish is to reformat a logfile such that all lines... (4 Replies)
I'm new to Unix scripting and I'm not sure if this can be done. Example:
search (grep) in a file for 'Control ID' and then replace with 4 blanks 7 bytes before 'Control ID.
input
"xxxxxx1234xxxxxxxControl IDxxxxxx"
output:
"xxxxxx xxxxxxxControl IDxxxxxx"
thanks! (7 Replies)
Hi all,
I'm after some help with this small issue which i'm struggling to work out a fix for.
I have a file that contains records that all have a time stamp for each individual record, i need to search the file for a specific time stamp and then search back 10 seconds to see if the number... (2 Replies)
Hi,
I'm using the following to do a backwards search of a file for a string
sed s/^M//g FILE | nawk 'c-->0;$0~s{if(b)for(c=b+1;c>1;c--)print r;print;c=a}b{r=$0}' b=10 a=0 s="9005"|grep "policy "|sort -u |awk '{print $4}'|cut -c2-10
My issue is that because I'm looking back 10 lines it's... (11 Replies)
Hi,
I have a file which generate Timestamp in this format :-
20121012162354
20121114191610
20121210232808
20121216220002
20130106220002
20130127220001
20130203220001
20121012162354
20121114191610
20121210232808
20121216220002
20130106220002
20130127220001
20130203220001 (2 Replies)
Discussion started by: netdbaind
2 Replies
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set_color
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set_color - set_color - set the terminal color
set_color - set the terminal color
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set_color [-v --version] [-h --help] [-b --background COLOR] [COLOR]
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Change the foreground and/or background color of the terminal. COLOR is one of black, red, green, brown, yellow, blue, magenta, purple,
cyan, white and normal.
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set_color uses the terminfo database to look up how to change terminal colors on whatever terminal is in use. Some systems have old and
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