using alias to create subshell and work in it

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http://www.unix.com – using kerberos to access remote server. first I execute Code: kshell to create subshell and then Code: kinit username@domain in that subshell. After that it prompts to enter password. Since I need to do this over and over, I am trying creating alias. I tried Code: kshell; kinit username@domain . Did not work, comes back to parent shell and if I type exit, it prompts for password. Will appreciate any suggestions to create a smart alias in bashrc. (HowTos)