The prefixes on the files states:
#!/bin/sh

This is fine, except that the files are ACTUALLY using bash syntax.

You have no doubt had this work because on Linux-based systems, /bin/sh is actually running bash. However, on other systems (namely Solaris x86) /bin/sh is old-skool shell (specifically ksh), and not bash.

I recommend that you change the prefixes to these to be
#!/bin/bash
When I did this, they started running more successfully.