(1) grep '?' # matches literal ?
# (i would expect a parse error, but whatever)
(2) grep '\?' # also matches literal ?
(3) grep ' \?' # matches everything, but given that the last
# expression matches a literal ?, i would expect this
# to match a spac
tag 22606 notabug
thanks
On 02/08/2016 06:28 PM, Chris Calabro wrote:
Thanks for the report. However, the behavior you see is intentional.
It helps to read POSIX on how grep uses Basic Regular Expressions:
http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap09.html
In particular:
"T
