Editing Shell script (section)

==Interoperability among scripting languages==

Different scripting languages may share many common elements, largely due to being POSIX based, and some shells offer modes to emulate different shells. This allows a shell script written in one scripting language to be adapted into another.

One example of this is Bash, which offers the same grammar and syntax as the Bourne shell, and which also provides a POSIX-compliant mode.<ref>{{Cite web|url=https://www.gnu.org/software/bash/manual/html_node/Major-Differences-From-The-Bourne-Shell.html|title=Major Differences From The Bourne Shell}}</ref> As such, most shell scripts written for the Bourne shell can be run in BASH, but the reverse may not be true since BASH has extensions which are not present in the Bourne shell. As such, these features are known as [[wikt:bashism|bashisms]].<ref>{{Cite web|url=https://betterprogramming.pub/24-bashism-to-avoid-for-posix-compliant-shell-scripts-8e7c09e0f49a|title=24 Bashism To Avoid for POSIX-Compliant Shell Scripts|date=18 May 2022 }}</ref>