Re: bash leaks sh-np-NNN files and pipes in /tmp/ when command substitution is used

[Yuri]

On 12/12/2013 05:02, Greg Wooledge wrote:
> If bash is using named pipes of the form /var/tmp/sh-np-* or /tmp/sh-np-*
> then the compile-time options or detection must have failed to find a
> usable/dev/fd/  subsystem.  (My HP-UX workstation is littered with
> sh-np-* FIFOs in BOTH /tmp and /var/tmp.)

BSDs traditionally opposed to /dev/fd and /proc file systems. bash 
configure specifically tests for /dev/fd/3 and notes this is to detect 
FreeBSD, which only implements /dev/fd/{0..2}.

I also have a lot of /tmp/sh-np-*. bash leaves them when race condition 
doesn't occur. And when it occurs, oddly, this is because the premature 
deletion of /tmp/sh-np-*

If they would keep those fifos in deleted state as much of the time as 
possible, such leak would be minimal.

Yuri