On 15/02/19 07:20, Eric Blake wrote: > Except that POSIX has the nasty requirement that sh started with an > inherited ignored SIGPIPE must silently ignore all attempts from within > the shell to restore SIGPIPE handling to child processes of the shell: > > $ (trap '' PIPE; bash -c 'trap - PIPE; \ > seq 9999 | sort -n | sed 5q | wc -l') > 5 > sort: write failed: 'standard output': Broken pipe > sort: write error
> You HAVE to use some other intermediate program if you want to override > an inherited ignored SIGPIPE in sh into an inherited default-behavior > SIGPIPE in sort. Should we also propose to POSIX to allow trap to specify default? Maybe `trap 0 PIPE` or similar?
