Steps for enabling shell users to invoke the shell automatically

Before you begin: You need to know which shell users want to invoke the shell automatically when they log on to TSO/E, and you must be the system programmer.

Perform the following steps to enable shell users to invoke the shell automatically when they log on to TSO/E.

Select or create a TSO/E logon procedure for users who want to invoke the shell automatically when they log on to TSO/E
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In the logon procedure, add a PARM parameter to the EXEC statement for program IKJEFT01.
```
//      EXEC  PGM=IKJEFT01, ...
//            PARM=OMVS
```
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Tell users to specify the procedure on the TSO/E logon panel on the line:
```
Procedure ===>
```
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When you are done, you have enabled shell users to invoke the shell automatically when they log on to TSO/E.

Tip:

To customize the OMVS command for all shell users, you can create a REXX exec with the customized options. Then specify the name of the REXX exec in the PARM parameter, instead of with the OMVS command. In the exec, for example, you can specify the following changes:
- Use of the 3270 alarm.
- Number of sessions. (The default is 1.) For example:
```
OMVS SESSIONS (3)
```
- The key or keys to be used for escape.
- The settings for the function keys.
- The table to be used for code page conversion.
- Shared address space.
To customize any of the default function key settings, type your selection within the parentheses after the function key name.
To make function key 1 (<PF1>) the Control key, issue:
```
OMVS PF1(CONTROL)
```
Use it to type an escape sequence such as <Ctrl-D>. (First type d on the command line and then press the function key.)

You can now perform the steps for the decision you have made.