In bash you can use exec -a and in zsh you can alternatively also set ARGV0 to execute a program with a certain zeroth argument but is there also a POSIX way of doing so?
I saw the following snippet in this thread: How to change from csh to bash as default shell
I’m running a ksh script on AIX 7.2.
Is there any way to dynamically choose the interpreter that’s executing a script? I have a script that I’m running on two different systems, and the interpreter I want to use is located in different locations on the two systems. What I end up having to to is change the hashbang line every time I switch over. I would like to do something that is the logical equivalent of this (I realize that this exact construct is impossible):
Consider this from the documentation of Bash’ builtin exec: