[Haskell-cafe] Re: [offtopic] UNIX Shell (was: GHC RTS question)

Brandon S. Allbery KF8NH allbery at ece.cmu.edu
Wed Feb 24 12:43:32 EST 2010

On Feb 24, 2010, at 02:18 , Roman Cheplyaka wrote:
>>  #! /bin/sh
>>  ./prog --RTS ${1+"$@"}
>> The longer specification above should work with whatever /bin/sh is
>> around, whether it's Solaris /sbin/sh, FreeBSD's sh, general Linux
>> bash, Debian/Ubuntu dash, etc.
> Are you referring to some Solaris shell bug?
> Under POSIX these constructs seem to be equivalent.
> "If there are no positional parameters, the expansion of '@' shall
> generate zero fields, even when '@' is double-quoted."

s/Solaris/most commercial Unixes/ because making /bin/sh POSIX would  
break too many things (unlike Linux/*BSD, they have to consider  
backward compatibility; a concept that Linux in particular seems not  
to comprehend).

brandon s. allbery [solaris,freebsd,perl,pugs,haskell] allbery at kf8nh.com
system administrator [openafs,heimdal,too many hats] allbery at ece.cmu.edu
electrical and computer engineering, carnegie mellon university    KF8NH

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