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Full Discussion: Extract n-digits from string in perl
Top Forums Shell Programming and Scripting Extract n-digits from string in perl Post 303003071 by rdrtx1 on Thursday 7th of September 2017 10:24:05 AM
Old 09-07-2017
Code:
line="01/05/2017 10:23:41 [ABCD-22357$0]: file.log.38: database error, MODE=SINGLE, LEVEL=critical, STATE: 01170255 (mode main"

echo "$line" | perl -e 'foreach my $str (split(/ /, <>)) {if (length($str)==8 && $str=~/^\d+$/) {print "$str\n"}; } '

echo "$line" | sed -n -r '/\b([0-9]{1,8})\b/s/.*\b([0-9]{1,8})\b.*/\1/;p;'

echo "$line" | awk 'length==8 && /^[0-9]+$/' RS=" "

for w in $line ; do if [ ${#w} = 8 ] && [ "${w/[^0-9]*}" = "$w" ] ; then { print "$w" ; } ; fi ; done

This User Gave Thanks to rdrtx1 For This Post:
james2009
 

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LEARN ABOUT REDHAT

xchklog

xchklog(8)						JFS utility - extract fsck.jfs log						xchklog(8)

NAME

       xchklog - extract a log from the JFS fsck workspace into a file

SYNOPSIS

       xchklog [ -f output.file ] [ -p ] [ -V ] device

DESCRIPTION

       xchklog extracts the contents of either the most recent or immediately prior JFS fsck service log from the specified device, and writes the
       output into a specified or default file.  (The default file name is <pwd>fscklog.new.  If the -p option is used, the default file  name	is
       <pwd>fscklog.old.)

       The contents of the output file can be formatted into text by using the JFS utility xchkdmp.

       device is the special file name corresponding to the actual device from which the fsck log will be extracted (e.g.  /dev/hdb1 ).

OPTIONS

       -f output.file
	      Specify the output file name, overriding the default file name.

	      output.file must be 127 characters or less in length.

	      output.file will be created in the present working directory unless it is fully qualified.

       -p     Extract the prior log (as opposed to the most recent log).

       -V     Print version information and exit (regardless of any other chosen options).

EXAMPLES

	Extract the most recent log on /dev/hda5 into <pwd>fscklog.new:

	      xchklog /dev/hda5

       Extract the most recent log on /dev/hdb3 into /temp/l9651107.log:

	      xchklog -f /temp/l9651107.log /dev/hdb3

       Extract the prior log on /dev/hdb4 into <pwd>fscklog.old:

	      xchklog -p /dev/hdb4

REPORTING BUGS

       If you find a bug in JFS or xchklog, please report it via the bug tracking system ("Report Bugs" section) of the JFS project web site:
       http://oss.software.ibm.com/jfs

       Please  send  as  much  pertinent information as possible, including any xchklog error messages and the complete output of running fsck.jfs
       with the -v option on the JFS device.

SEE ALSO

       xchkdmp(8), mkfs.jfs(8), fsck.jfs(8), logdump(8), logredo(8), xpeek(8)

AUTHOR

       Barry Arndt  (barndt@us.ibm.com)

       xchklog is maintained by IBM.
       See the JFS project web site for more details:
       http://oss.software.ibm.com/jfs

								 January 11, 2002							xchklog(8)
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