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#!/bin/bash
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#
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# cli_getConfigLines.sh -- This function retrives configuration lines
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# form configuration files. As arguments, the configuration file
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# absolute path, the configuration section name, and the configuration
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# variable name must be provided.
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#
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# Copyright (C) 2009, 2010, 2011, 2012 The CentOS Project
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or (at
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# your option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# General Public License for more details.
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![](https://seccdn.libravatar.org/avatar/6547be6a776b3f31e43b7f4b6dd82ebcede0f2d11be196e3a70e28760a760a3c?s=16&d=retro) |
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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#
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# ----------------------------------------------------------------------
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# $Id$
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# ----------------------------------------------------------------------
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function cli_getConfigLines {
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# Initialize absolute path to configuration file.
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local CONFIG_ABSPATH="$1"
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# Verify absolute path to configuration file.
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cli_checkFiles ${CONFIG_ABSPATH}
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# Initialize configuration section name where the variable value
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# we want to to retrive is set in.
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local CONFIG_SECTION="$2"
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# Initialize variable name we want to retrive value from.
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local CONFIG_VARNAME="$3"
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# Verify configuration variable name. When no variable name is
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# provided print all configuration lines that can be considered
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# as well-formed paths. Be sure configuration variable name starts
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# just at the begining of the line.
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if [[ ! $CONFIG_VARNAME =~ '^[[:alnum:]_./-]+$' ]];then
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CONFIG_VARNAME='[[:alnum:]_./-]+='
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fi
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# Retrive configuration lines from configuration file.
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local CONFIG_LINES=$(cat ${CONFIG_ABSPATH} \
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| egrep -v '^#' \
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| egrep -v '^[[:space:]]*$' \
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| sed -r 's![[:space:]]*!!g' \
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| sed -r -n "/^\[${CONFIG_SECTION}\]$/,/^\[/p" \
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| egrep -v '^\[' | sort | uniq \
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| egrep "^${CONFIG_VARNAME}")
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# Output value related to variable name.
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echo "$CONFIG_LINES"
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}
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