How to use cat command with ignore conditions in bash script?

Question

The following command works fine on the command line, but not in a bash script.

cat dir/!(00|01)/* > all.txt

When executing the same command in a bash script I get the following error:

../scripts/preprocess.sh: line 8: syntax error near unexpected token `('
../scripts/preprocess.sh: line 8: `    cat dir/!(00|01)/* > all.txt'

Does anyone know how to get this to work in a script?

Thanks

Answer 1

您需要在命令行中设置的脚本中设置相同的shell选项，即extglob 。