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#!/bin/bash
#
# lsb_release command for testing the ld module.
# Only the -a option is supported.
#
# This version of the lsb_release command reads an lsb-release file.
#
# The lsb-release file has the usual format, e.g.:
# DISTRIB_ID=Ubuntu
# DISTRIB_RELEASE=14.04
# DISTRIB_CODENAME=trusty
# DISTRIB_DESCRIPTION="Ubuntu 14.04.3 LTS"
# Where each line is optional. If a line is missing, the default value
# will be the empty string.
#
if [[ "$@" != "-a" ]]; then
echo "Usage: lsb_release -a"
exit 2
fi
# Because the PATH is set to just this directory, we cannot use 'dirname'
# or other external programs, but need to use built-in abilities of bash.
LSB_FILE="${0%/*}/../etc/lsb-release"
if [[ ! -f $LSB_FILE ]]; then
echo "Error: LSB release file does not exist: $LSB_FILE"
exit 1
fi
source $LSB_FILE
if [[ -n $LSB_VERSION ]]; then
echo "LSB Version: $LSB_VERSION"
else
echo "No LSB modules are available."
fi
echo "Distributor ID: ${DISTRIB_ID:-}"
echo "Description: ${DISTRIB_DESCRIPTION:-}"
echo "Release: ${DISTRIB_RELEASE:-}"
echo "Codename: ${DISTRIB_CODENAME:-}"
exit 0
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