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#!/usr/bin/env bash
#
# Determine the quarter's timestamps
#
# Parameters
BASENAME="`basename $0`"
DIRNAME="`dirname $0`"
QUARTER="$1"
YEAR="`echo $QUARTER | cut -d . -f 1`"
QUARTILE="`echo $QUARTER | cut -d . -f 2`"
# Syntax check
if [ -z "$QUARTILE" ]; then
echo "usage: $BASENAME <quarter>"
echo "quarter format: YYYY.QQ"
echo "example: 2024.Q3"
exit 1
fi
# Lookup table
case $QUARTILE in
Q1)
BEGIN="01-01"
END="03-31"
;;
Q2)
BEGIN="04-01"
END="06-30"
;;
Q3)
BEGIN="07-01"
END="09-30"
;;
Q4)
BEGIN="10-01"
END="12-31"
;;
esac
# Determine the UNIX timestamp for the beginning and end of the quarter
QUARTER_BEGIN="`date -d "${YEAR}-${BEGIN} 00:00:00 UTC" +%s`"
QUARTER_END="`date -d "${YEAR}-${END} 00:00:00 UTC" +%s`"
# Output
echo "Quarter begins at UNIX timestamp $QUARTER_BEGIN ($YEAR-$BEGIN)"
echo "Quarter ends et UNIX timestamp $QUARTER_END ($YEAR-$END)"
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