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Grep Question..

 
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Top Forums UNIX for Dummies Questions & Answers Grep Question..
# 8  
Old 06-10-2010
I got it!
Here is the working solution...

tail -f /var/log/ncolog | egrep -vi "autovac|closed|sucess|FTP LOGIN FROM|DNS_OK|cron"

Works perfectly..!

I now want to add a spin, so this basically keeps tailing the log "filtering the above" I want to add a statement to send me and alert via mail if the tail sees a specific message I have this so far.

Code:
/var/log/ncolog | egrep -vi "autovac|closed|sucess|FTP LOGIN FROM|DNS_OK|cron" > /tmp/checkdmesg.$$

HERE I am stuck .. as I want this to be in a loop "live" constantly checking the file .. or the tail..

then
   mailx -s "error type"  address < /tmp/checkdmesg.$$
fi
exit

Any advice, sorry pretty new but enjoying this quite a bit.

I was thinking of

creating a loop with a break which keeps re-scanning every 30 seconds "sleep 30" ..

and running the script over and over ?!

help with the script appreciated
 
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LEARN ABOUT LINUX

xzegrep

XZGREP(1)							     XZ Utils								 XZGREP(1)

NAME

       xzgrep - search compressed files for a regular expression

SYNOPSIS

       xzgrep [grep_options] [-e] pattern file...
       xzegrep ...
       xzfgrep ...
       lzgrep ...
       lzegrep ...
       lzfgrep ...

DESCRIPTION

       xzgrep  invokes	grep(1)  on  files  which may be either uncompressed or compressed with xz(1), lzma(1), gzip(1), or bzip2(1).  All options
       specified are passed directly to grep(1).

       If no file is specified, then standard input is decompressed if necessary and fed to grep(1).  When reading from  standard  input,  gzip(1)
       and bzip2(1) compressed files are not supported.

       If  xzgrep  is  invoked as xzegrep or xzfgrep then egrep(1) or fgrep(1) is used instead of grep(1).  The same applies to names lzgrep, lze-
       grep, and lzfgrep, which are provided for backward compatibility with LZMA Utils.

ENVIRONMENT

       GREP   If the GREP environment variable is set, xzgrep uses it instead of grep(1), egrep(1), or fgrep(1).

SEE ALSO

       grep(1), xz(1), gzip(1), bzip2(1), zgrep(1)

Tukaani 							    2010-09-27								 XZGREP(1)