chsh

#! /usr/bin/env python

from manageldap import *
import argparse, os

def shellexists(shell):
    with open("/etc/shells") as f:
        shells = [x.strip() for x in f.readlines()]
        return (shell in shells) and os.path.exists(shell)

parser = argparse.ArgumentParser(description="Change a user's shell.")
parser.add_argument('-s','--shell',type=str,help='The new login shell of the user. This must be a valid shell in /etc/shells.',default='')
parser.add_argument("user",type=str,help='The login whose shell is being changed.')
args = parser.parse_args()

if not shellexists(args.shell):
    print "The specified shell, %s, does not exist in either /etc/shells or is not installed." % args.shell
    exit(1)

moddeduser = usermod(args.user,shell=args.shell)
update(moddeduser)