function bashrc – How to View Shell Function’s Current Definition

bashrcfunction

So I am editing bashrc constantly, and I have a terminal open with a working function definition, although bashrc has been updated with a wrong function definition. (Because the definition do not change until I source the updated bashrc) How can I look up the working function definition in this case? For example, if I type:

alias function_name

I can see what the definition is for that alias. Is there a command similar for function? If not, is there a command to output entire bashrc that the current terminal is using?

Best Answer

typeset -f function

displays the indicated function's current definition. It works in ksh (where it originated), bash and zsh. (n.b. in zsh, type -f, which, functions and whence -f also show the function definition.)

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Bash – How to Refresh Aliases and Functions After Defining New Ones

Sourcing the changed file will provide access to the newly written alias or function in the current terminal, for example:

source ~/.bashrc

An alternative syntax:

. ~/.bashrc

Note that if you have many instances of bash running in your terminal (you mentionned multiple tabs), you will have to run this in every instance.

Bash – .bashrc overwritten but still sourced — how can it be recovered

alias without parameter outputs the definitions of currently defined aliases.
declare -f outputs the definitions of currently defined functions.
export -p outputs the definitions of currently defined variables.

All those commands output definitions ready to be reused, you can redirect their outputs directly to a new ~/.bashrc.

All lists will contain a lot of elements defined elsewhere, for example /etc/profile and /etc/bash_completion. So you will have to clean up the list manually.

Best Answer

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Bash – How to Refresh Aliases and Functions After Defining New Ones

Bash – .bashrc overwritten but still sourced — how can it be recovered

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