Marvin Greenberg wrote:
> Configuration Information [Automatically generated, do not change]:
> Machine: i686
> OS: cygwin
> Compiler: gcc
> Compilation CFLAGS: -DPROGRAM='bash.exe' -DCONF_HOSTTYPE='i686'
> -DCONF_OSTYPE='cygwin' -DCONF_MACHTYPE='i686-pc-cygwin' -DCONF_VENDOR='pc'
> -DLOCALEDIR='/usr/share/locale' -DPACKAGE='bash' -DSHELL -DHAVE_CONFIG_H
> -DRECYCLES_PIDS -I. -I/tmp/bash-3.1 -I/tmp/bash-3.1/include
> -I/tmp/bash-3.1/lib -O2
> uname output: CYGWIN_NT-5.1 tom 1.5.19(0.150/4/2) 2006-01-20 13:28 i686 Cygwin
> Machine Type: i686-pc-cygwin
>
> Bash Version: 3.1
> Patch Level: 17
> Release Status: release
>
> Description:
> All these work fine:
> cat <~/.bash_history
> cat <(cat ~/.bash_history)
> while read f; do echo $f; done <~/.bash_history
>
> But, this fails:
> while read f; do echo $f; done <(cat ~/.bash_history)
> bash: syntax error near unexpected token `<(cat ~/.bash_history)
That's not a redirection; it's process substitution. Process substitution
is a shell expansion that results in a filename. Once you realize this,
you should understand why it fails and how you can make it work.
Chet
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
Live Strong. No day but today.
Chet Ramey, ITS, CWRU [EMAIL PROTECTED] http://cnswww.cns.cwru.edu/~chet/
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