Difference between revisions of "Unix tools/Date"

@@ Line 1: / Line 1: @@
-Example use of the System.Time library.
-<haskell>
---
--- Implement the unix 'date' command in Haskell
---
-import System.IO
-import System.Time
-import System.Locale
-import System.Environment
-main = do
-    [s]  <- getArgs
-    time <- getClockTime >>= toCalendarTime
-    putStrLn $ formatCalendarTime defaultTimeLocale s time
-</haskell>
-Running this code:
-<haskell>
-$ ghc -O A.hs
-$ ./a.out "%a %b %e %H:%M:%S %Z %Y"
-Thu Dec 14 12:09:02 EST 2006
-$ ./a.out "%y-%m-%d"
--12-14
-</haskell>
-[[Category:Code]]
-[[Category:Tutorials]]

Revision as of 14:29, 6 February 2021