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Top Forums Shell Programming and Scripting Find a string and extract a value from a file Post 302350669 by phazzi on Friday 4th of September 2009 01:45:08 PM
Old 09-04-2009
voce ja conseguiu? se nao .. tai

www:~# echo "n0 \u003d 7,00! Central densidade [10 ** 19 m-3]" | awk '{print $3}' |cut -f1 -d\
7,00
www:~#


Espero ter ajudado.

---------- Post updated at 12:45 PM ---------- Previous update was at 12:42 PM ----------

www:~# echo "n0=7.00 \!Central density [10**19 m-3]" | awk '{print $1}' |cut -f1 -d\! |cut -f2 -d\=
7.00
www:~#
 

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CUT(1)									FSF								    CUT(1)

NAME
cut - remove sections from each line of files SYNOPSIS
cut [OPTION]... [FILE]... DESCRIPTION
Print selected parts of lines from each FILE to standard output. Mandatory arguments to long options are mandatory for short options too. -b, --bytes=LIST output only these bytes -c, --characters=LIST output only these characters -d, --delimiter=DELIM use DELIM instead of TAB for field delimiter -f, --fields=LIST output only these fields; also print any line that contains no delimiter character, unless the -s option is specified -n with -b: don't split multibyte characters -s, --only-delimited do not print lines not containing delimiters --output-delimiter=STRING use STRING as the output delimiter the default is to use the input delimiter --help display this help and exit --version output version information and exit Use one, and only one of -b, -c or -f. Each LIST is made up of one range, or many ranges separated by commas. Each range is one of: N N'th byte, character or field, counted from 1 N- from N'th byte, character or field, to end of line N-M from N'th to M'th (included) byte, character or field -M from first to M'th (included) byte, character or field With no FILE, or when FILE is -, read standard input. AUTHOR
Written by David Ihnat, David MacKenzie, and Jim Meyering. REPORTING BUGS
Report bugs to <bug-coreutils@gnu.org>. COPYRIGHT
Copyright (C) 2002 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU- LAR PURPOSE. SEE ALSO
The full documentation for cut is maintained as a Texinfo manual. If the info and cut programs are properly installed at your site, the command info cut should give you access to the complete manual. cut (coreutils) 4.5.3 February 2003 CUT(1)
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