If I type this on the command line:
_longopt ()
{
case "$prev" in
--+([-a-z0-9_]))
echo foo
;;
esac;
}
it works as expected.
If I put it in a script (foo.sh) it fails:
./foo.sh: line 6: syntax error near unexpected token `('
./foo.sh: line 6: ` --+([-a-z0-9_]))'
Why?
And more importantly: Given that I have a function already defined like the above, how can I automatically convert it into a function that works in a script?
$ bash --version
GNU bash, version 4.3.11(1)-release (x86_64-pc-linux-gnu)
Copyright (C) 2013 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software; you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
#!-line?