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Full Discussion: output words between sentences SED
Top Forums Shell Programming and Scripting output words between sentences SED Post 302268951 by Christoph Spohr on Tuesday 16th of December 2008 03:14:26 PM
Old 12-16-2008
Hi,

choose one of two ways:

Code:
sed 's/.*OK: \[\([^]]*\).*/\1/' <<< \
"Thu Dec  4 08:28:57 2008 : Auth: Login OK: [vyce6220] (from client LINKSYS3 port 12 cli 001644fc4838)"

or much easier:

Code:
IFS="[]" && read 1 2 3 <<< \
"Thu Dec  4 08:28:57 2008 : Auth: Login OK: [vyce6220] (from client LINKSYS3 port 12 cli 001644fc4838)"
echo $2

HTH Chris
 

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LEARN ABOUT X11R4

fmt

FMT(1)                                                             User Commands                                                            FMT(1)

NAME

       fmt - simple optimal text formatter

SYNOPSIS

       fmt [-WIDTH] [OPTION]... [FILE]...

DESCRIPTION

       Reformat each paragraph in the FILE(s), writing to standard output.  The option -WIDTH is an abbreviated form of --width=DIGITS.

       With no FILE, or when FILE is -, read standard input.

       Mandatory arguments to long options are mandatory for short options too.

       -c, --crown-margin
              preserve indentation of first two lines

       -p, --prefix=STRING
              reformat only lines beginning with STRING, reattaching the prefix to reformatted lines

       -s, --split-only
              split long lines, but do not refill

       -t, --tagged-paragraph
              indentation of first line different from second

       -u, --uniform-spacing
              one space between words, two after sentences

       -w, --width=WIDTH
              maximum line width (default of 75 columns)

       -g, --goal=WIDTH
              goal width (default of 93% of width)

       --help display this help and exit

       --version
              output version information and exit

AUTHOR

       Written by Ross Paterson.

REPORTING BUGS

       GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
       Report fmt translation bugs to <http://translationproject.org/team/>

COPYRIGHT

       Copyright (C) 2017 Free Software Foundation, Inc.  License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
       This is free software: you are free to change and redistribute it.  There is NO WARRANTY, to the extent permitted by law.

SEE ALSO

       Full documentation at: <http://www.gnu.org/software/coreutils/fmt>
       or available locally via: info '(coreutils) fmt invocation'

GNU coreutils 8.28                                                 January 2018                                                             FMT(1)
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