Hi Paul,
Manpages are your friend. Try "man <command name>", and you'll learn more than 
you ever wanted to know about some commands. Alternatively, if you want a quick 
summary, most commands will accept an -h or --help option, though not all of 
them will do this.
Best,
Zack.
On Oct 26, 2011, at 12:00 PM, Paul Hopewell wrote:

> Hello All, 
> I have just been reading the very useful command line primer which was 
> referenced in earlier posts t this list. 
> 
> One nice feature of the command prompt on Windows is that you can type 
> something like "ls ?" which will display the syntax of the ls command which 
> is very helpful if you cannot quite remember the correct syntax and options. 
> 
> Is there a similar help facility to remind you of command line syntax in the 
> Apple terminal app? 
> 
> Many thanks. 
> 
> Paul Hopewell 
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