A simple command counter

[Charles Dye]

rem  1.  Create a variable to hold the count:
set ncmd=0

rem  2.  Show this variable in the prompt:
prompt `[%ncmd] $P$g`

rem  3.  Increment the count after each command:
alias post_exec=`set ncmd=%@inc[%ncmd]`

Note the use of backquotes to prevent variables and functions from being expanded prematurely.

 

[samintz]

As an FYI, you don't need the inner %ncmd as @eval and @inc/@dec expect that to be a variable.

alias post_exec=`set ncmd=%@inc[ncmd]`

 

[Charles Dye]

As an FYI, you don't need the inner %ncmd as @eval and @inc/@dec expect that to be a variable.

I think they actually call %@EVAL[] internally; you can do stuff like %@INC[6 * 9] and get sensible results.

 

[Joe Caverly]

Many, many years ago, back when I was using 4DOS, it was either Charles or Rex who provided me with a method to "imitate" the bash shell prompt, giving a prompt that shows the command count. I am still using it.

I have an alias defined as;

plc=set plc=%@inc[%plc]

In my 4start.btm, I have;

PROMPT=`%_cmdproc:%_pid:%@exec[@plc] %plc $g `

Joe