How to use aliases defined in .bashrc in other scripts?

Question

In ~/.bashrc, I defined some aliases. But I cannot use them in other shell scripts, where I can only use aliases defined right there. Even though I sourced bashrc, it still

Answer 1

Stolen from enzotib on ask ubuntu: Alias are deprecated in favor of shell functions. From bash manual page:

For almost every purpose, aliases are superseded by shell functions.

To create a function, and export it to subshells, put the following in your ~/.bashrc:

petsc() {
    ~/petsc-3.2-p6/petsc-arch/bin/mpiexec "$@"
}
export -f petsc

Then you can freely call your command from your scripts.