unexpected operator error when selecting any option in the .sh file

[Bread1009]

i run linux (ubuntu) and when i saw this i thought i would give it a try. put it in the specified file path but when it asks the Y/N questions, no matter what i put it just gives the error above.

what i get:

./generate.sh would you like flat materials? Y/N/HELP Y ./generate.sh: 217: [: Y: unexpected operator ./generate.sh: 220: [: Y: unexpected operator ./generate.sh: 222: [: Y: unexpected operator invalid input would you like flat materials? Y/N/HELP

please help, thanks!

[Pyogenics]

What version of ubuntu and shell are you using? Have you modified the script in anyway?

[Pyogenics]

A potential fix maybe to change the first line from #!/bin/sh to #!/bin/bash, since ubuntu seems to use a different shell for sh instead of bash?

[Bread1009]

looks like switching the sh to bash worked! thank you!

[Pyogenics]

I will create a PR an replace this in the code to prevent future issues, thanks for exposing this issue.

[Bread1009]

No problem.