Hi Loic! On Thu, 14 May 2020 13:57:48 +0000 <loic.trego...@orange.com> wrote:
> Hi, > > I've reproduced a strange behaviour of grep command when a file name of a > single letter is present in current directory . > > $ echo a | grep [a-z] > a > $ touch t > $ echo a | grep [a-z] > $ rm t > $ echo a | grep [a-z] > a > $ > This is standard Unix shell ( sh / ksh / bash ) globbing behaviour: https://en.wikipedia.org/wiki/Glob_%28programming%29 Quoting works: ``` [shlomif@localhost ~]$ cd tmp [shlomif@localhost tmp]$ touch t [shlomif@localhost tmp]$ echo a | grep [a-z] [shlomif@localhost tmp]$ echo a | grep '[a-z]' a [shlomif@localhost tmp]$ echo a | grep "[a-z]" a [shlomif@localhost tmp]$ ``` Also see https://perl-begin.org/topics/security/code-markup-injection/ . > > Any idea ? > > Regards > > _________________________________________________________________________________________________________________________ > > Ce message et ses pieces jointes peuvent contenir des informations > confidentielles ou privilegiees et ne doivent donc pas etre diffuses, > exploites ou copies sans autorisation. Si vous avez recu ce message par > erreur, veuillez le signaler a l'expediteur et le detruire ainsi que les > pieces jointes. Les messages electroniques etant susceptibles d'alteration, > Orange decline toute responsabilite si ce message a ete altere, deforme ou > falsifie. Merci. > > This message and its attachments may contain confidential or privileged > information that may be protected by law; they should not be distributed, > used or copied without authorisation. If you have received this email in > error, please notify the sender and delete this message and its attachments. > As emails may be altered, Orange is not liable for messages that have been > modified, changed or falsified. Thank you. > Ahem :( -- Shlomi Fish https://www.shlomifish.org/ https://www.shlomifish.org/humour/Summerschool-at-the-NSA/ Knuth is not God! Typing “God” into Google and pressing “I’m Feeling Lucky” will not lead you to his homepage. — https://www.shlomifish.org/humour/bits/facts/Knuth/ Please reply to list if it's a mailing list post - https://shlom.in/reply .
