Hi,

I wrote a little menu script that searches through another script you specify and displays step-names and next to it the text of the step. The scripts are converted JCL from mainframe. It alows you to select steps you want and will then create a new script which includes only the steps you selected. It looks something like

Code:

Step        Selected     Text
S0010       [ ]             S0030 #Here we do some stuff
S0020       [ ]             cp file to otherfile
S0030       [x]             some more commands.....
S0040       [ ]              .
S0050       [ ]              .
                                 .
                                ## End of step 0030

I am using tput to position the cursor for each of the text lines and clear the lines one at a time. You can however notice the clearing/drawing, its a bit slow. I have loaded it into a table so no disk reading involved. When I display the text below the steps it is super fast, no visible delay, but then I dont have to position the cursor, just delete till end of terminal and echo the text.

Because of space, some scripts have a lot of steps plus it looks more impressive, I want to keep the layout as above.

I have been playing with flow control from the command line. i.e. If you type ^S, then type some commands nothing is echoed, then type ^Q it will echo everyting you typed etc.

I want to do the same from the script, I think I am just being thick cannot figure out how. How do I in the script emulate ^S and ^Q. I have been searching all day but most articles are about enabling/disabling flow control via IXON, not what I want.

I want to stop scrolling, do my erase of old lines and echo of new lines, then send to the screen by enabling scrolling again in the script.

Thanks!

---------- Post updated at 04:13 PM ---------- Previous update was at 04:10 PM ----------

My spaces have dissapeared, looks like below, underscore=space

Step_Selected_Text
S0010_[ ]_____S0030 #Here we do some stuff
S0020_[ ]_____cp file to otherfile
S0030_[x]_____some more commands.....
S0040_[ ]_____.
S0050_[ ]_____.
______________.
______________even more commands
______________## End of step 0030