Fwd: bash not using pipes or /tmp @ boot?

[Linda Walsh]

Not sure how but this went off into space, sorta...

Greg Wooledge wrote:
> On Mon, Oct 06, 2014 at 12:14:57PM -0700, Linda Walsh wrote:
> >    done <<<"$(get_net_IFnames_hwaddrs)"
>
> > Where am I using a HERE doc?
>
> <<< and << both create temporary files.
----

        Yeah... where?

assign_netif_names=/etc/init.d/boot.assign_netif_names start
> > /etc/init.d/boot.assign_netif_names#208(read_actuals)> typeset -p act_hw2if
declare -A act_hw2if='()'
> > /etc/init.d/boot.assign_netif_names#209(read_actuals)> typeset -p act_if2hw
declare -A act_if2hw='()'
> > /etc/init.d/boot.assign_netif_names#210(read_actuals)> du -s /tmp /var/tmp
27776 /tmp
13156 /var/tmp
> > > /etc/init.d/boot.assign_netif_names#211(read_actuals)> date +%Y%m%d.%H%M
> > /etc/init.d/boot.assign_netif_names#211(read_actuals)> touch 
> > /tmp/boot-20141006.1418
> > /etc/init.d/boot.assign_netif_names#212(read_actuals)> ls -l 
> > /tmp/boot-20141006.1418
-rw-r--r-- 1 root root 0 Oct  6 14:18 /tmp/boot-20141006.1418

^^^ tmp is writeable.  (so is var/tmp)

The output: (6 lines...)
> > > /etc/init.d/boot.assign_netif_names#204(read_actuals)> get_net_IFnames_hwaddrs
> > > /etc/init.d/boot.assign_netif_names#193(get_net_IFnames_hwaddrs)> echo eth0 
> > > 00:15:17:bf:be:b2
> > > /etc/init.d/boot.assign_netif_names#193(get_net_IFnames_hwaddrs)> echo eth1 
> > > 00:15:17:bf:be:b3
> > > /etc/init.d/boot.assign_netif_names#193(get_net_IFnames_hwaddrs)> echo eth2 
> > > 00:26:b9:48:71:e2
> > > /etc/init.d/boot.assign_netif_names#193(get_net_IFnames_hwaddrs)> echo eth3 
> > > 00:26:b9:48:71:e4
> > > /etc/init.d/boot.assign_netif_names#193(get_net_IFnames_hwaddrs)> echo eth4 
> > > a0:36:9f:15:c9:c0
> > > /etc/init.d/boot.assign_netif_names#193(get_net_IFnames_hwaddrs)> echo eth5 
> > > a0:36:9f:15:c9:c2
/etc/init.d/boot.assign_netif_names: line 204: cannot create temp file for 
here-document: No such file or directory

----
Maybe if bash didn't create tmp files in non-standard locations,
this never would have been an issue (or just use pipes)..