Shell that allows predefining environment variables before invoking another specified shell

MenuClick.scpt

-- `menu_click`, by Jacob Rus, September 2006
-- 
-- Accepts a list of form: `{"Finder", "View", "Arrange By", "Date"}`
-- Execute the specified menu item.  In this case, assuming the Finder 
-- is the active application, arranging the frontmost folder by date.

on menu_click(mList)
	local appName, topMenu, r
	
	-- Validate our input
	if mList's length < 3 then error "Menu list is not long enough"
	
	-- Set these variables for clarity and brevity later on
	set {appName, topMenu} to (items 1 through 2 of mList)
	set r to (items 3 through (mList's length) of mList)
	
	-- This overly-long line calls the menu_recurse function with
	-- two arguments: r, and a reference to the top-level menu
	tell application "System Events" to my menu_click_recurse(r, ((process appName)'s ¬
		(menu bar 1)'s (menu bar item topMenu)'s (menu topMenu)))
end menu_click

on menu_click_recurse(mList, parentObject)
	local f, r
	
	-- `f` = first item, `r` = rest of items
	set f to item 1 of mList
	if mList's length > 1 then set r to (items 2 through (mList's length) of mList)
	
	-- either actually click the menu item, or recurse again
	tell application "System Events"
		if mList's length is 1 then
			click parentObject's menu item f
		else
			my menu_click_recurse(r, (parentObject's (menu item f)'s (menu f)))
		end if
	end tell
end menu_click_recurse

nallsh.c

#include <stdio.h>    // fprintf
#include <string.h>   // strtok
#include <unistd.h>   // gettop
#include <inttypes.h> // uint32_t

#define VERSION "1.0"

void addDefine(char* define)
{
    char* defineCopy = strdup(define);
    char* name = strtok(defineCopy, "=");
    char* value = strtok(NULL, "");
    char* empty = "";

    value = (value == NULL) ? strdup(empty) : strdup(value);
    setenv(name, value);

    free(defineCopy);
    free(value);
}

void usage(int rc)
{
    fprintf(stderr, "usage: nallsh [-v] [-h] [-d <name=value>] [-s <shell>] [-a <shell argument>]\n");
    fprintf(stderr, "\t-v prints the version and exits\n");
    fprintf(stderr, "\t-h prints this usage and exits\n");
    fprintf(stderr, "\t-d defines an evironment variable with specified name and value. If\n");
    fprintf(stderr, "\t   value is not specified, the empty string is used\n");
    fprintf(stderr, "\t-s species the shell. It should be a full path\n");
    fprintf(stderr, "\t-a specifies a shell argument. -l is a common argument to specify a\n");
    fprintf(stderr, "\t   but check your particular shell's documentation.\n");
    exit(rc);
}

int main(int argc, char** argv)
{
    char* shell = 0;
    char* shellargs[1024];

    uint32_t curArg = 1; // We backfill argument 0 after we know the shell

    int flag = 0;
    while((flag = getopt(argc, argv, "d:s:a:vh")) != -1)
    {
        switch(flag)
        {
            case 'd':
            {
                addDefine(optarg);
                break;
            }
            case 's':
            {
                shell = optarg;
                break;
            }
            case 'a':
            {
                shellargs[curArg] = optarg;
                ++curArg;
                break;
            }
            case 'v':
            {
                printf("nallsh v%s\n", VERSION);
                exit(0);
            }
            case 'h':
            {
                usage(0);
            }
            default:
            {
                usage(1);
            }
        }
    }

    shellargs[curArg] = (char*)0;

    int rc = 0;
    if(shell == 0)
    {
        fprintf(stderr, "Must specify shell with -s <shell>\n");
        rc = 1;
    }

    shellargs[0] = shell;

    rc = execv(shell, shellargs);
    fprintf(stderr, "Couldn't exec shell '%s'. rc = %d\n", shell, rc);

    exit(rc);
}

ProjectTerm.scpt

-- rename this file based on your Terminal profile name

property MenuClick : load script POSIX file "/INSERT_PATH_TO/MenuClick.scpt"

tell application "Terminal" to activate
tell MenuClick
	menu_click({"Terminal", "Shell", "New Window", "INSERT_YOUR_PROJECT_HERE"})
end tell