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Full Discussion: sed coding
Top Forums UNIX for Dummies Questions & Answers sed coding Post 302162408 by uvrakesh on Monday 28th of January 2008 11:23:54 PM
Old 01-29-2008
one simple idea to get a abstract idea about the sed script or command doing
see the command
sed "/[\t][:0123456789]*$/d"

here d is the command and thus it does some delete operation
and since there is no s command it can be sure that it does not do a pattern substitution

here the pattern is
/[\t][:0123456789]*$/

and it says the pattern contains tab then may be : or any digit then anything and then end

please try to give examples to prove what u feel or demand to be true

Rakesh UV
 

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FC-PATTERN(1)															     FC-PATTERN(1)

NAME
fc-pattern - parse and show pattern SYNOPSIS
fc-pattern [ -cdVh ] [ --config ] [ --default ] [ [ -f format ] [ --format format ] ] [ --version ] [ --help ] [ pattern [ element... ] ] DESCRIPTION
fc-pattern parses pattern (empty pattern by default) and shows the parsed result. If --config is given, config substitution is performed on the pattern before being displayed. If --default is given, default substitution is performed on the pattern before being displayed. If any elements are specified, only those are printed. OPTIONS
This program follows the usual GNU command line syntax, with long options starting with two dashes (`-'). A summary of options is included below. -c Perform config substitution on pattern. -d Perform default substitution on pattern. -f Format output according to the format specifier format. -V Show version of the program and exit. -h Show summary of options. pattern Parses and displays pattern (uses empty pattern by default). element If set, the element property is displayed for parsed pattern. SEE ALSO
FcNameParse(3) FcConfigSubstitute(3) FcDefaultSubstitute(3) FcPatternPrint(3) FcPatternFormat(3) fc-cat(1) fc-cache(1) fc-list(1) fc- match(1) fc-query(1) fc-scan(1) The fontconfig user's guide, in HTML format: /usr/share/doc/fontconfig/fontconfig-user.html. AUTHOR
This manual page was updated by Behdad Esfahbod <behdad@behdad.org>. Apr 20, 2010 FC-PATTERN(1)
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