Difference between revisions of "Unix tools/Date"
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| − | Example use of the System.Time library. |
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| − | <haskell> |
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| − | -- |
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| − | -- Implement the unix 'date' command in Haskell |
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| − | -- |
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| − | import System.IO |
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| − | import System.Time |
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| − | import System.Locale |
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| − | import System.Environment |
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| − | |||
| − | main = do |
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| − | [s] <- getArgs |
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| − | time <- getClockTime >>= toCalendarTime |
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| − | putStrLn $ formatCalendarTime defaultTimeLocale s time |
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| − | </haskell> |
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| − | Running this code: |
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| − | <haskell> |
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| − | $ ghc -O A.hs |
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| − | $ ./a.out "%a %b %e %H:%M:%S %Z %Y" |
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| − | Thu Dec 14 12:09:02 EST 2006 |
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| − | $ ./a.out "%y-%m-%d" |
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| − | 06-12-14 |
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| − | </haskell> |
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| − | [[Category:Code]] |
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| − | [[Category:Tutorials]] |
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