Our great sponsors
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WorkOS
The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.
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Ansible
Ansible is a radically simple IT automation platform that makes your applications and systems easier to deploy and maintain. Automate everything from code deployment to network configuration to cloud management, in a language that approaches plain English, using SSH, with no agents to install on remote systems. https://docs.ansible.com.
There is a tool embedded in the Debian devscripts project, called checkbashisms. It is a simple but powerful Perl script that ferrets out any bashisms in a shell script that begins with the #!/bin/sh shebang line.
It does raise the POSIX-compliance flag on any lines that need it, but many other issues are checked as well. Your code might run just fine, but have gotchas that need some attention. Shellcheck will help you there. I integrate it into my editor, so that I can lint while I type.
If your system has Python, Ruby, NodeJS, or other favorite language, might that be a more robust, flexible, and consistent option? Even in circumstances (embedded systems) in which those runtimes would be too bulky, perhaps remote scripting from another machine is in order. For instance, one could use Python to SSH to the remote machine, gain the information necessary, perform some logic, then send the appropriate commands back, without Python being necessary on the target machine.
This is the reason such tools as Ansible, Saltstack, Chef, and Puppet exist. These, too, can be quite bloated if the needs are simple. But they are unbeatable for flexibility and repeatability.