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Grep Error Log File
Badges Unanswered Ask Question _ Unix & Linux Stack Exchange is a question and answer site for users grep log file for string of Linux, FreeBSD and other Un*x-like operating systems. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can command to check error logs in linux answer The best answers are voted up and rise to the top How to grep top most frequent error messages in a unix logfile up vote 5 down vote favorite 1 If I have a file example apache log file How to extract the top most
How To Check Log Files In Unix
frequent error messages in a unix log file with no timestamps the key is most frequent error message should come on top of the list linux shell grep webserver share|improve this question edited May 22 '14 at 19:18 Vldb.User 71 asked Oct 23 '13 at 5:22 Jaya William 76124 migrated from serverfault.com Oct 23 '13 at 22:04 This question came from our site for system and network administrators. 1 grep message logfile | sort | uniq -c | sort -n | head –MadHatter Oct 23 '13 at 5:45 Sorry, head
Grep Example
should read tail. –MadHatter Oct 23 '13 at 5:58 Thanks for the edit, more clearly defining the question; Ursadon has answered it for you, so could you please accept his or her answer so we can stop this question popping up again? As you will gather by the slowly-accumulating downvotes, this question is arguably off-topic for SF. –MadHatter Oct 23 '13 at 7:27 add a comment| 2 Answers 2 active oldest votes up vote 10 down vote cat /tmp/file: ERROR 1 1234 ERROR 2 1234 ERROR 3 1234 ERROR 4 1234 ERROR 4 1234 ERROR 3 1234 ERROR 2 1234 ERROR 5 1234 ERROR 1 1234 ERROR 4 1234 ERROR 1 1234 ERROR 1 1234 ERROR 1 1234 ERROR 3 1234 ERROR 2 1234 ERROR 1 1234 ERROR 4 1234 ERROR 1 1234 ERROR 4 1234 ERROR 1 1234 ERROR 2 1234 grep "ERROR" /tmp/file | sort | uniq -c | sort -r: 8 ERROR 1 1234 5 ERROR 4 1234 4 ERROR 2 1234 3 ERROR 3 1234 1 ERROR 5 1234 first column shows how many occurrences of each string were found Explanation: grep "ERROR" /tmp/file\ # select only ERROR string | sort\ # order | uniq -c\ # count duplicate items | sort -r # reverse order for top 5 errors, you can add |head -n5 share|improve this answer edited Oct 23 '13 at 22:51 Joseph R. 21.8k24486 answered Oct 23 '13 at 5:49 Ursadon 2 The final sort should be "sort -rn" (numeric sort) or else you won't get the right order. If you change /tmp/file so it has 2 of each line it already has, the order you'll ge
Scripting Unix shell scripting - KSH, CSH, SH, BASH, PERL, PHP, SED, AWK and shell scripts and shell scripting languages here. Search Forums Show Threads Show Posts Tag Search Advanced Search Unanswered grep usage Threads Find All Thanked Posts Go to Page... learn unix and linux commands
Tail Command In Unix
how to save error messages Shell Programming and Scripting Tags error Thread Tools Search this grep count Thread Display Modes #1 08-06-2010 sonu_pal Registered User Join Date: Aug 2010 Last Activity: 18 April 2014, 6:58 AM EDT Location: India Posts: 31 Thanks: 0 Thanked 1 Time in http://unix.stackexchange.com/questions/97341/how-to-grep-top-most-frequent-error-messages-in-a-unix-logfile 1 Post how to save error messages hi all, I want to copy a file into itself -bash-3.00$ cp lsfile lsfile cp: lsfile and lsfile are identical i got such error messages .. i want to save that error messages into a separate file..Is it possible.. Remove advertisements Sponsored Links sonu_pal View Public Profile Find all posts by sonu_pal #2 08-06-2010 port43 Registered User Join Date: Aug http://www.unix.com/shell-programming-and-scripting/141770-how-save-error-messages.html 2010 Last Activity: 11 October 2016, 10:01 AM EDT Location: Detroit Suburb Posts: 62 Thanks: 10 Thanked 11 Times in 11 Posts First, you cannot copy a file to itself. If you want to supress the error message from trying to do such a thing and save those errors to another file use: Code: cp lsfile lsfile 2>>error_messages This will take stdout and redirect it to the file of your choice, in this case error_messages Remove advertisements Sponsored Links port43 View Public Profile Visit port43's homepage! Find all posts by port43 « Previous Thread | Next Thread » Thread Tools Show Printable Version Email this Page Subscribe to this Thread Display Modes Linear Mode Switch to Hybrid Mode Switch to Threaded Mode Search this Thread Advanced Search More UNIX and Linux Forum Topics You Might Find Helpful Thread Thread Starter Forum Replies Last Post /var/adm/messages error sunsri01 Solaris 2 11-09-2007 10:33 AM error messages in /var/adm/messages nitinp82 UNIX for Advanced & Expert Users 1 04-17-2007 10:17 AM 'more' error messages mma_buc_98 UNIX for Dummies Questions & Answers 2 08-14-2002 10:50 AM error messages tamemi UNIX for Dummies Questions & Answers 1 07-17-2002 09:35 AM All times are GMT -4. The time now is 01:
old newsgroup archive, reformatted for your reading pleasure. Which one is your favorite? "Values of B will give rise to dom." FATAL system error #nnnn CAUSE: We should never get here! OHHHH…. I give up Core dumped COMPILER UNABLE TO ABORT AN ATTEMPT WAS http://fsckin.com/2007/09/24/189-humorous-unix-errors/ MADE TO WRITE BEYOND THE MAXIMUM ASSIGNED SPACE FOR A MASS STORAGE FILE. AN ATTEMPT WAS MADE TO EXPAND A MASS STORAGE FILE BEYOND THE MAXIMUM ASSIGNED SPACE. A READ FUNCTION FOR A MASS STORAGE FILE SPECIFIED AN ADDRESS (WORD 5 OF THE I/O PACKET) THAT IS BEYOND THE MAXIMUM ASSIGNED SPACE. A READ OR WRITE FUNCTION FOR A WORD-ADDRESSABLE MASS STORAG FILE SPECIFIED A MASS STORAGE ADDRESS (WORD 5 OF THE I/O PACKET) AND A TOTAL DATA COUNT. WHEN THE MASS STORAGE ADDRESS IS log file ADDED TO THE TOTAL DATA COUNT, THE RESULTING ENDING MASS STORAGE ADDRESS IS GREATER THAN 2*/35-1. A READ OR WRITE FUNCTION FOR A SECTOR-FORMATTED MASS STORAGE FILE SPECIFIED A MASS STORAGE ADDRESS (WORD 5 OF THE I/O PACKET) THAT IS GREATER THAN 2*/30-1. ADI ONLY: REFERENCE ATTEMPTED BEYOND THE ASSIGNED FILE WHEN THE FILE IS CONFIGURED AS A FH-432 OR FH-1782 DRUM. ERROR: A really big FUCK UP has been detected !! Momentaraly writing while seeking.. Constantly writing while seeking.. Momentaraly writing while reading.. initstate: more error messages not enough state (%d bytes) with which to do jack; ignored. "Keyboard not present, press any key" "You lied to me when you told me this was a program" "PROGRAMMER GOOFED . . . YOU SHOULD NEVER SEE THIS MESSAGE" YOU CAN'T DO THAT! Man the Lifeboats! Women and children first! $ make :== $ sys$system:teco32 make $ make love Not war? That makes 100 errors; please try again. You can now delete more, or insert, or whatever. Sorry, I don't know how to help in this situation. Maybe you should try asking a human? Sorry, I already gave what help I could… An error might have occurred before I noticed any problems. If all else fails, read the instructions. This can't happen. I'm broken. Please show this to someone who can fix can fix I can't go on meeting you like this. One of your faux pas seems to have wounded me deeply.. in fact, I'm barely conscious. Please fix it and try again. Interruption You rang? IMPOSSIBLE. NONEXISTENT. ETC. BAD. A funny symbol that I can't read has just been input. Continue, and I'll forget that it ever happened. I suspect you've forgotten a `}', causing me to apply this control sequence to too much text. How can we recover? My plan is to forget the whole thing and hope for the best. I dddon't go any higher than filll. Dimensions can be in units of em, ex, in, pt, pc, cm, mm, dd, cc, bp, or sp; but yours