#8802: createProcess implictlitly escapes and quotes command line parameters -------------------------------------+------------------------------------- Reporter: jstolarek | Owner: Type: bug | Status: new Priority: high | Milestone: 7.8.1 Component: libraries/process | Version: 7.9 Keywords: | Operating System: Unknown/Multiple Architecture: Unknown/Multiple | Type of failure: Runtime crash Difficulty: Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | -------------------------------------+------------------------------------- I've just run into severe usability issue with the `process` library. It turns out that it performs quoting and escaping of command line parameters. The result is that it is impossible to run many shell commands that contain "unsafe" characters: {{{ diff <(echo $ENV_FOO) <(echo $ENV_BAR) awk 'NR<=10' Foo.txt }}} because they are turned into some nonsense. The culprit is `translate` function in libraries/process/System/Process/Internal.hs. I'm not fixing this myself as I assume there was some motivation behind escaping and quoting. I'm assigning high priority as it makes impossible to create shell processes correctly. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8802 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler