Shell Programming and Scripting

Thanks agama, appreciate it.

could you please give an example for the following?


thanks again
best regards
user

Moderator's Comments:

edit by bakunin: changed [CODE]..[/CODE]- to [QUOTE]..[/QUOTE]-tags.

I always use the following construct for sensitive / dangerous operations. As i use ksh i use the "print"-builtin, you may want to change this to "echo" or whatever:

Code:

#!/bin/ksh

SIMULATE=""
# SIMULATE="print -"

...
$SIMULATE <potentially dangerous command>
...

In normal operation "$SIMULATE" evaluates to an empty string and the command just executes. If "SIMULATE" is set to its content like in the commented line then the command is printed instead of executing it.

I hope this helps.

bakunin

The script above is an example of this. Just a script that does nothing but echos the state that you can run by hand or drive from cron. Or you can implement something like bakunin suggested. I do something similar that is set when -n (meaning do nothing real) is set on the command line.