Kommentare zu: /usr/bin/test not /usr/bin/[ anymore?

Von: ccm

ccm — Tue, 08 Jan 2008 17:45:32 +0000

@Malcolm:

Think the comment in Savannah says it: Depending on the file name is not compatible to the gnu coreutils guidelines – that is why those two programs have been split.

Von: Malcolm Parsons

Malcolm Parsons — Tue, 08 Jan 2008 15:48:56 +0000

It seems this was changed in 2003:

http://git.savannah.gnu.org/gitweb/?p=coreutils.git;a=commit;h=138fd919b8039c219fd5bca4f99bcfe65d3e69e0

http://git.savannah.gnu.org/gitweb/?p=coreutils.git;a=commit;h=05731b47170a04cb54be605b037ffd712fdd8a3f

Von: Stefan Potyra

Stefan Potyra — Tue, 08 Jan 2008 15:22:21 +0000

You’ll find the answer in coreutils test.c, which gets compiled twice.

The reason why these mustn’t be identical (apart from different behaviour for –help and –version) should be clear from the following example:

if test -z $MYVAR; then
..
fi

vs.

if [ -z $MYVAR; then
..
fi

The first is valid, the second is not and *must* fail.

HTH,
Stefan.

Von: Daniel Holbach

Daniel Holbach — Tue, 08 Jan 2008 14:41:12 +0000

coreutils: /usr/bin/[

Von: Olivier

Olivier — Tue, 08 Jan 2008 14:07:29 +0000

Hi !
On my fedora core 8 [ and test are different too :

ls /usr/bin/test /usr/bin/\[ -l
-rwxr-xr-x 1 root root 31404 déc 5 14:25 /usr/bin/[
-rwxr-xr-x 1 root root 29032 déc 5 14:24 /usr/bin/test