31 lines
540 B
Bash
Executable File
31 lines
540 B
Bash
Executable File
#!/usr/bin/env bash
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DATE=$1
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declare -i day
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if [[ ${#DATE} -ne 10 ]] ; then
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echo ""
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echo "Invalid Date: $DATE"
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echo ""
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echo -e "Usage: \033[1m$(basename $0) YYYYMMDD\033[m"
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echo ""
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exit 0
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fi
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eval $(echo $DATE | sed 's/^\(....\)\(..\)\(..\)/year=\1 month=\2 day=\3/')
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cal $month $year 2> /dev/null | grep -w $day > /dev/null
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if [[ $? -eq 0 ]] ; then
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echo ""
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echo "Valid Date: $DATE"
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echo ""
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else
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echo ""
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echo "Invalid Date: $DATE"
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echo ""
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echo "Usage: $(basename $0) YYYYMMDD"
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echo ""
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fi
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exit 0
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