Re: conditional aliases are broken

[Eric Blake]

On 08/18/2011 08:38 AM, Sam Steingold wrote:
> mkdir z
> cd z
> touch a b 'c d'

When doing exercises like this, I like to:

touch a b 'c  d'

Notice the double spacing - it proves whether I used enough quoting 
throughout the exercise - if 'c d' with one space shows up anywhere, 
then I missed quoting, because word splitting followed by argument 
concatenation with only one space must have happened.

> how do I write a function that would print the same as
> $ \ls | cat
> a
> b
> c d

> $ f1(){ for a in "$*"; do echo $a; done; }

Incorrect quoting on $a.  Also, remember the difference between $* and 
$@ inside "" - the former creates only one word, and only the latter 
splits the result into the same number of words as were originally 
arguments to the function.  You meant:

f(){ for a; do echo "$a"; done; }

or

f(){ for a in "$@"; do echo "$a"; done; }

(both are identical).

--
Eric Blake   eblake@redhat.com    +1-801-349-2682
Libvirt virtualization library http://libvirt.org