User/session definition resolver that prints shell definitions for aliases, functions, and exported variables.

showdef.sh

showdef () { # Check if alias, function, or environment variable & print the definition
    if alias "$1" &> /dev/null; then # alias?
        alias "$1";
    elif declare -f "$1" &> /dev/null; then # function?
        declare -f "$1";
    elif [ -n "${!1}" ]; then # environment variable? (no$)
        echo "${!1}";
    else
        echo "No alias, function, or environment variable found for '$1'";
    fi;
}

Example:

> showdef showdef
showdef () 
{ 
    if alias "$1" &> /dev/null; then
        alias "$1";
    else
        if declare -f "$1" &> /dev/null; then
            declare -f "$1";
        else
            if [ -n "${!1}" ]; then
                echo "${!1}";
            else
                echo "No alias, function, or environment variable found for '$1'";
            fi;
        fi;
    fi
}
>



> showdef c
alias c='cd'
>