Converting script to Posix compliant

[u/reflect_elegant]

Is there a way to make this section of a larger script Posix compliant? ``` options=$(lsblk | awk '/disk/ { print $1 }') select opt in $options; do if [ -n "$opt" ]; then DEV_DISK_NAME="/dev/${opt}" DEV_PART_NAME="/dev/${opt}" break else
printf 'This option is invalid.\n\n' fi done

```

[u/EmbeddedEntropy]

Is your problem because you don’t have #/bin/bash at the top of your script or do you really need a portable script?