Re: problem in gnu grep 2.4.2

[Alain Magloire]

> 
> Hi,
> 
> I noticed that the following does not work in grep 2.4.2 but it does
> (and should) work in grep 2.3:
>   $ ps ax | grep '[^]]name'
> The objective of this pattern is to match all lines that have 'name'
> but not prepended with a ']'.

Right, and that is what grep is doing:

# uname -rs
SunOS 5.8
# /bin/echo "]name\nbname"| grep -E '[^]]name'
bname
# grep --version
grep (GNU grep) 2.4.2

If you have a different behaviour, for 2.3 then that is a bug in 2.3
(I did not test 2.3).

> BTW the following does work in 2.4.2
>   $ ps ax | grep '[^[:graph:]]ssh'

# /bin/echo "]name\nbname"| grep -E '[^[:graph:]]name'
# /bin/echo "]name\nbname"| grep -E '[^[:punct:]]name'
bname


--
alain