Package: grep Version: 2.6.3-3 File: /bin/grep Severity: important Hi folks,
as far as I understand regular expressions, no output should be produced by the following four command lines. $ echo "_c" | egrep '^_[A-Z]\+' $ echo "_c" | egrep '^_[A-Z]+' _c $ echo "_c" | grep '^_[A-Z]\+' _c $ echo "_c" | grep '^_[A-Z]+' Interestingly, if "_c" is substituted by "_a", the command lines will not produce any outputs. Under an older Debian lenny system (grep version 2.5.3~dfsg-6) the command lines show the expected behaviour for both "_a" and "_c". $GREP_OPTIONS is not set on both systems. Thanks in advance for your comments. Cheers, Christian -- System Information: Debian Release: 6.0.1 APT prefers stable APT policy: (500, 'stable') Architecture: amd64 (x86_64) Kernel: Linux 2.6.32-5-amd64 (SMP w/4 CPU cores) Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Versions of packages grep depends on: ii dpkg 1.15.8.10 Debian package management system ii install-info 4.13a.dfsg.1-6 Manage installed documentation in ii libc6 2.11.2-10 Embedded GNU C Library: Shared lib grep recommends no packages. Versions of packages grep suggests: ii libpcre3 8.02-1.1 Perl 5 Compatible Regular Expressi -- no debconf information -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected]
