Re: updatedb conversion to sh bug

[Andreas Metzler]

On 2006-09-10 Frank Berger <address@hidden> wrote:
[...]
> old=no
> for arg
> do
>   opt=`echo $args|sed 's/^\([^=]*\).*/\1/'`
>   val=`echo $args|sed 's/^[^=]*=\(.*\)/\1/'`
> ----
> The last two lines should be:
> ----
>   opt=`echo $@|sed 's/^\([^=]*\).*/\1/'`
>   val=`echo $@|sed 's/^[^=]*=\(.*\)/\1/'`
> ----

Nope. You seem to have made a copy'n'paste error, the respective lines
actually read:

for arg
do
  opt=`echo $arg|sed 's/^\([^=]*\).*/\1/'`
  val=`echo $arg|sed 's/^[^=]*=\(.*\)/\1/'`

(Note $arg instead of $args!.)

And this is a correct for-loop. - The usual syntax for a for-loop is

for blah in word ; do ... ; done
e.g.
for x in blah bar ; do echo $x ; done

However the [in word] is optional, omitting it is be equivalent to
[in "$@"], i.e. looping through the positional parameters.

cu andreas
<http://www.opengroup.org/onlinepubs/009695399/utilities/xcu_chap02.html#tag_02_09_04_03>
-- 
The 'Galactic Cleaning' policy undertaken by Emperor Zhark is a personal
vision of the emperor's, and its inclusion in this work does not constitute
tacit approval by the author or the publisher for any such projects,
howsoever undertaken.                                (c) Jasper Ffforde