$ command line cheat sheets
Cheat Sheet Title: [ no_spaces_alphanumeric_only ]
Cheat Sheet:%a - The abbreviated weekday name (``Sun'') %A - The full weekday name (``Sunday'') %b - The abbreviated month name (``Jan'') %B - The full month name (``January'') %c - The preferred local date and time representation %d - Day of the month (01..31) %e - Day of the month without leading zeroes (1..31) %H - Hour of the day, 24-hour clock (00..23) %I - Hour of the day, 12-hour clock (01..12) %j - Day of the year (001..366) %k - Hour of the day, 24-hour clock w/o leading zeroes ( 0..23) %l - Hour of the day, 12-hour clock w/o leading zeroes ( 1..12) %m - Month of the year (01..12) %M - Minute of the hour (00..59) %p - Meridian indicator (``AM'' or ``PM'') %P - Meridian indicator (``am'' or ``pm'') %S - Second of the minute (00..60) %U - Week number of the current year, starting with the first Sunday as the first day of the first week (00..53) %W - Week number of the current year, starting with the first Monday as the first day of the first week (00..53) %w - Day of the week (Sunday is 0, 0..6) %x - Preferred representation for the date alone, no time %X - Preferred representation for the time alone, no date %y - Year without a century (00..99) %Y - Year with century %Z - Time zone name %z - Time zone expressed as a UTC offset (``-04:00'') %% - Literal ``%'' character t = Time.now t.strftime("Printed on %m/%d/%Y") #=> "Printed on 04/09/2003" t.strftime("at %I:%M%p") #=> "at 08:56AM" t.strftime("%e %B, %Y") #=> "9 April, 2003" t.strftime("%Y-%m-%dT%H:%M:%S") #=> "2003-04-09T08:56:07" (EN 28601) ^_^
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