Bash – How to Find the Definition of a Function

bashshell

I work in an environment that has a lot of legacy shell script magic lying around. One thing used heavy from the command line are bash functions that get sourced from some file included from some file included from some file … included in my .bash_profile. Is there a way to get the definition or even better the location of the definition of these functions without tracking them down through 5 levels of includes?

Best Answer

To get the function definition:

type -a function_name

Related Solutions

Linux – How to unset or get rid of a bash function

The unset built-in command takes an option, -f, to delete functions:

unset -f foo

Form the unset entry in the bash manpage:

If -f is specified, each name refers to a shell function, and the function definition is removed.

Note: -f is only really necessary if a variable with the same name exists. If you do not also have a variable named foo, then unset foo will delete the function.

How to ‘source’ a shell script using bash from zsh

You could put your compilation commandline in a bash script, which sources the compilation scripts bevor executing the compilation command.

Something like

    #!/bin/bash
    . /path/to/environmentscript
    . /path/to/morefunctionsscript

    compile_command

Then instead of invoking compile_command by hand, you just invoke your new bash script.

Best Answer

Related Solutions

Linux – How to unset or get rid of a bash function

How to ‘source’ a shell script using bash from zsh

Related Question