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