forked from Shinonome/dots-hyprland
end-4
39 lines
1.1 KiB
Bash
Executable File
39 lines
1.1 KiB
Bash
Executable File
#!/bin/bash
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# Thanks Bing!
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# Check if the argument is a valid number
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if [[ ! $1 =~ ^-?[0-9]+$ ]]; then
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echo "Invalid argument: $1"
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echo "Usage: getfirstdayofmonth [NUMBER]"
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exit 1
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fi
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# Get the current month and year
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current_month=$(date +%m)
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current_year=$(date +%Y)
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# Add the argument to the current month and adjust the year if needed
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if [[ $1 -gt 0 ]]; then
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next_month=$((current_month + $1))
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next_year=$((current_year + ((next_month-1) / 12)))
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next_month=$((current_month + ($1 % 12)))
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else
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next_month=$((current_month + $1))
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next_year=$((current_year + ((next_month-12) / 12)))
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next_month=$((current_month + ($1 % 12)))
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fi
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if ((next_month > 12)); then
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next_month=$((next_month % 12))
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elif ((next_month == 0)); then
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next_month=12
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# next_year=$((next_year - 1))
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elif ((next_month < 1)); then
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next_month=$(( (next_month + 12) % 12 ))
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fi
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# Get the weekday name (%A), day number (%d), month name (%B) and year (%Y) of the first day of the next month
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first_day=$(date -d "$next_year-$next_month-01" '+%u %d %m %Y')
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# Print the result
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echo $first_day |