# tcl-stack file

The tcl-stack file keeps a record
of all commands issued from TCL.

## Description

Normally, the item-ID of the [1](#fntarg_1) file is the users-ID. If a t option
is included in the options attribute of the users item, the item-ID
of the tcl-stack is the line number of the process logged on.

A users item must be created in the users file prior to any user
logging on to the system. However, tcl-stack items are created automatically
when the user executes the first command from TCL.

Each and
every unique command typed at the : TCL prompt,
is saved as an attribute in the tcl-stack file.
Having unlimited item size means that there is no size limit for the
items in the tcl-stack. Therefore, the file size should be monitored
by the System Administrator. Because the [2](#fntarg_2) file is
on the dm account, it should be saved (with t-dump) prior to an operating system upgrade.

## See also

- [Command](https://d3codex.com/definitions/command/)
- [Dot stack](https://d3codex.com/tcl/dot-stack/)
- [stack command](https://d3codex.com/tcl/stack-command/)
- [t-dump command](https://d3codex.com/tcl/t-dump-command/)
- [TCL stack](https://d3codex.com/tcl/tcl-stack/)
- [users file](https://d3codex.com/systemfiles/users-file/)

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Source: https://d3codex.com/systemfiles/tcl-stack-file/ - part of the D3Codex reference.