01-01-2006
I suggest that you maintain a history file to keep track of the past commands, something like what ksh maintains. The file is .sh_history or something similar in the user's home directory. There is another thing that you would have to do, and that is have an escape sequence by which the user enters the history mode. Ksh in vi mode uses Esc to enter the command mode; you have to use something similar.
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LEARN ABOUT OPENDARWIN
tcl_recordandevalobj
Tcl_RecordAndEvalObj(3) Tcl Library Procedures Tcl_RecordAndEvalObj(3)
__________________________________________________________________________________________________________________________________________________
NAME
Tcl_RecordAndEvalObj - save command on history list before evaluating
SYNOPSIS
#include <tcl.h>
int
Tcl_RecordAndEvalObj(interp, cmdPtr, flags)
ARGUMENTS
Tcl_Interp *interp (in) Tcl interpreter in which to evaluate command.
Tcl_Obj *cmdPtr (in) Points to a Tcl object containing a command (or sequence of commands) to execute.
int flags (in) An OR'ed combination of flag bits. TCL_NO_EVAL means record the command but don't evaluate it.
TCL_EVAL_GLOBAL means evaluate the command at global level instead of the current stack level.
_________________________________________________________________
DESCRIPTION
Tcl_RecordAndEvalObj is invoked to record a command as an event on the history list and then execute it using Tcl_EvalObjEx (or Tcl_Global-
EvalObj if the TCL_EVAL_GLOBAL bit is set in flags). It returns a completion code such as TCL_OK just like Tcl_EvalObjEx, as well as a
result object containing additional information (a result value or error message) that can be retrieved using Tcl_GetObjResult. If you
don't want the command recorded on the history list then you should invoke Tcl_EvalObjEx instead of Tcl_RecordAndEvalObj. Normally
Tcl_RecordAndEvalObj is only called with top-level commands typed by the user, since the purpose of history is to allow the user to re-
issue recently-invoked commands. If the flags argument contains the TCL_NO_EVAL bit then the command is recorded without being evaluated.
SEE ALSO
Tcl_EvalObjEx, Tcl_GetObjResult
KEYWORDS
command, event, execute, history, interpreter, object, record
Tcl 8.0 Tcl_RecordAndEvalObj(3)