On 24/09/2025 at 13:10, Jean-Jacques Brucker wrote:
Hello friends,
I met a strange behavior with "shopt -p", which could ruin my sleep .
In a part of a script, i would like to use extglob,
then I wrote:
```
# save extglob shopt
extglob="$(shopt -p extglob)"
# Make sure extglob is set
shopt -s extglob
```
(and later: )
```
# make sure extglob is as we found it before.
$extglob
```
But the line
extglob="$(shopt -p extglob)" )
returns 1.
Why ?
NB: As I use to use "set -e", it is a little annoying, and I won't like to add a dirty
"|| true" as a workaround.
NB2: Tested on 2 debian machines, bash versions : 5.2.37 and 5.2.15.
```
shopt -p extglob >/dev/null; s_extglob=$?
shopt -s extglob
( do processing )
((s_extglob==1)) && shopt -u extglob
--
Chris Elvidge
England
