Re: [Help-bash] A do nothing function

[Stephane Chazelas]

2012-09-28 11:23:41 -0400, DJ Mills:
[...]
> filter() {
>   if [ -f tun0.net ]; then
>     sed '/^eth/d; /^wlan:/d; /^NetworkManager/d'
>   else
>     cat
>   fi
> }
> 
> blah=$(foo | filter | ....)
[...]

Onother approach that saves the "cat":

post_filter() {
  if [ -f tun0.net ]; then
    "$@" | sed '...'
  else
    "$@"
  fi
}

blah=$(post_filter foo | ...)

-- 
Stephane