29.13. Propagating Shell Functions

One easy way to define shell functions that you'll have every time you start a new shell is by defining them in your shell setup files (Section 3.3). Here are two other ways.

29.13.1. Exporting bash Functions

In bash , you can export functions to other bash subshells (Section 24.4). (The original Korn shell, but not the public-domain version, supposedly does this too, but I haven't had much luck with it.) Just use the command typeset -fx funcname, where funcname is the name of the function.