Re: redirection back to tty problem

[Alex fxmbsw7 Ratchev]

well i forwarded your text to him
in the end ppl in #bash helped me get it up, the my script

cat cmdhelp
#!/usr/bin/env -S bash

# for to be sourced in .bashrc or such

i=${SRANDOM:-$RANDOM}

t=/tmp/.$i o2=$t.2

trap '
if [[ $BASH_COMMAND == *--help* ]] ; then
 exec {fd1}>&1 {fd2}>&2 >"$o2" 2>&1
 cmd=$BASH_COMMAND
 printf %s\\n\\n "$cmd"
fi' debug

PROMPT_COMMAND='
if [[ $cmd ]] ; then
 exec >&$fd1 2>&$fd2
 vim "$o2"
 exec {fd1}>&- {fd2}>&-
 cmd=
fi
'$PROMPT_COMMAND

On Sun, Feb 27, 2022 at 1:02 PM Chris Elvidge <celvidge001@gmail.com> wrote:
>
> On 27/02/2022 10:31, Alex fxmbsw7 Ratchev wrote:
> > i made by request of an user a script that intercepts whenever a --help
cmd
> > is given, to open that output in vim ( nvim ) i guess to study, good
thing
> >
>
> Try: (cp is just here to test command)
>
> cp --help | view -c 'set ft=man nomod' -c 'set noeb vb t_vb=' -c 'map q
> <Esc>:q!<cr>' -c 'map i <nop>' -
>
> view is read-only, q to exit help.
> gview to open help in GUI version.
>
>
>
>
> --
> Chris Elvidge
> England
>