如何让用户直接登陆到自己编写的shell并且无法用ctrl＋c退出shell？
最好有个小程序，谢谢先！
　　　　　　

Put a line like this:
trap "" 2The command form is this:
trap [arg] [signal_spec]
For more info, read the manual for Borne  shell or better Borne-again shell. If you use bash, just give a command like this:
help trap　　　　　　

Put a line like this:
trap "" 2
If you use bash, give a command like this:
help trap
for more information.