found with coreutils-8.23, expr substr returns with an error code when the
substring consists of only '0' characters, and the match is started at position 1.
$ expr substr 1234 3 4; echo $?
0012
0
$ expr substr 1234 1 2; echo $?
12
0
$ expr substr 1234 1 2; echo $?
00
1
$ expr substr
tag 22045 notabug
close 22045
stop
On 28/11/15 20:47, Matthias Klose wrote:
> found with coreutils-8.23, expr substr returns with an error code when the
> substring consists of only '0' characters, and the match is started at
> position 1.
>
> $ expr substr 1234 3 4; echo $?
> 0012
> 0
> $
tag 22045 notabug
close 22045
stop
Hello,
On 11/28/2015 03:47 PM, Matthias Klose wrote:
found with coreutils-8.23, expr substr returns with an error code when the
substring consists of only '0' characters, and the match is started at position
1.
$ expr substr 1234 1 4; echo $?
1
