On Fri, Sep 24, 2010 at 04:43:38PM +0100, Marc Herbert wrote:
> Bourne shell is the only programming language I know that ignores
> errors by default. "set -e" does not completely repair this design
> flaw but it goes a long and appreciated way.
C does too. This is probably not a coincidence.
Le 24/09/2010 15:38, Greg Wooledge a écrit :
> If this is turning into a general discussion of errexit (set -e) then
> please also see
>
> http://mywiki.wooledge.org/BashFAQ/105 and
> http://fvue.nl/wiki/Bash:_Error_handling
These pages are great and should be read. But from experience, I
total
If this is turning into a general discussion of errexit (set -e) then
please also see
http://mywiki.wooledge.org/BashFAQ/105 and
http://fvue.nl/wiki/Bash:_Error_handling
Le 24/09/2010 14:52, Sascha Ziemann a écrit :
> The expression:
>
> declare a='x'$(false)
>
> means: concatenate the string 'x', which evaluates to itself, and the
> output of a sub shell, which performs the false command, and assign
> the concatenated value to the variable a.
>
> This means th
>> Description:
>> The errexit option does not work, if an error occures in a declare
>> statement.
>
> There is no error, because `declare' is defined to return success if the
> variable assignment is performed without an error.
As far as I know about interpreters the arguments of an assig
On 9/23/10 5:09 AM, Sascha Ziemann wrote:
> Configuration Information [Automatically generated, do not change]:
> Machine: i686
> OS: linux-gnu
> Compiler: gcc
> Compilation CFLAGS: -DPROGRAM='bash' -DCONF_HOSTTYPE='i686'
> -DCONF_OSTYPE='linux-gnu' -DCONF_MACHTYPE='i686-pc-linux-gnu'
> -DCONF_VEN
Sascha Ziemann wrote:
The following code prints "a". The second false terminates the script
but the first does not.
set -e
declare a="a"$(false)
echo $a
b="b"$(false)
echo $b
The first operation succeeds, the second doesn't.
The first operation
Configuration Information [Automatically generated, do not change]:
Machine: i686
OS: linux-gnu
Compiler: gcc
Compilation CFLAGS: -DPROGRAM='bash' -DCONF_HOSTTYPE='i686'
-DCONF_OSTYPE='linux-gnu' -DCONF_MACHTYPE='i686-pc-linux-gnu'
-DCONF_VENDOR='pc' -DLOCALEDIR='/home/users/ziemann/share/locale'
