If I have a list of files under a directory
ullman-000.pbm
ullman-001.pbm
...
ullman-098.pbm
ullman-099.pbm
ullman-1000.pbm
ullman-1001.pbm
ullman-1002.pbm
ullman-1003.pbm
ullman-1004.pbm
ullman-1005.pbm
ullman-1006.pbm
ullman-1007.pbm
ullman-1008.pbm
ullman-1009.pbm
ullman-100.pbm
ullman-1010.pbm
ullman-1011.pbm
ullman-1012.pbm
ullman-1013.pbm
ullman-1014.pbm
ullman-1015.pbm
ullman-1016.pbm
...
When using ullman*.pbm
to refer to them and pass it to command convert ullman*.pbm ullman.pdf
as input files, how can I make them in the order of
ullman-000.pbm
ullman-001.pbm
...
ullman-098.pbm
ullman-099.pbm
ullman-100.pbm
...
ullman-999.pbm
ullman-1000.pbm
ullman-1001.pbm
ullman-1002.pbm
ullman-1003.pbm
ullman-1004.pbm
ullman-1005.pbm
ullman-1006.pbm
ullman-1007.pbm
ullman-1008.pbm
ullman-1009.pbm
ullman-1010.pbm
ullman-1011.pbm
ullman-1012.pbm
ullman-1013.pbm
ullman-1014.pbm
ullman-1015.pbm
ullman-1016.pbm
...
Thanks?