100 lines
2.9 KiB
Plaintext
100 lines
2.9 KiB
Plaintext
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#!/bin/bash
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#
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# Copyright (c) 2015 Wind River Systems, Inc.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# 1) Redistributions of source code must retain the above copyright notice,
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# this list of conditions and the following disclaimer.
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#
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# 2) Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions and the following disclaimer in the documentation
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# and/or other materials provided with the distribution.
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#
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# 3) Neither the name of Wind River Systems nor the names of its contributors
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# may be used to endorse or promote products derived from this software without
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# specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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exe_name=$(basename $0)
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# outputs the date and time in pre-set formats
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# default format is: 20150114-181112
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# usage: timestamp [-a] [-d] [-u] [-s] [-S]
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# where: -a changes default to: 2015-01-14-18-11-56
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# -d changes default to: 20150114
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# -u changes default to: 20150114_181201
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# -s changes default to: 20150114-1812.04
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# -S changes default to: 20150114-1812
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# Some switches can be mixed and matched, eg. -Sa gives 2015-01-14-18-13
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date_format="%Y%m%d"
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time_format="%H%M"
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seconds_format="%S"
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seconds_separator=""
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date_time_separator="-"
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function usage {
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printf "usage: %s [-a] [-d] [-u] [-s] [-S]\n" $exe_name >&2
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}
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function fail {
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usage
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exit -1
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}
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function get_opts {
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declare -r optstr="adusSh"
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while getopts ${optstr} opt; do
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case ${opt} in
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a) all_separated=1 ;;
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d) date_only=1 ;;
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u) date_time_separator="_" ;;
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s) seconds_separator="." ;;
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S) no_seconds=1 ;;
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h) usage; exit 0 ;;
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*) fail ;;
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esac
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done
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}
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get_opts $@
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if [ x${all_separated} == x1 ]; then
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date_format="%Y-%m-%d"
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time_format="%H-%M"
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seconds_separator="-"
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fi
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if [ x${date_only} == x1 ]; then
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date_time_separator=""
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time_format=""
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seconds_format=""
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seconds_separator=""
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fi
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if [ x${no_seconds} == x1 ]; then
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seconds_format=""
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seconds_separator=""
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fi
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output_date=${date_format}${date_time_separator}
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output_time=${time_format}${seconds_separator}${seconds_format}
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output=$(date +${output_date}${output_time})
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echo ${output}
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