Hi, On Wed, Jan 06, 2021 at 17:16:26PM +0100, felix wrote: > I use near same version, but can't reproduce: > > $ echo $BASH_VERSION > 5.0.3(1)-release > > $ echo [0-1] > [0-1] > > Please try this: > > $ LANG=C bash -norc -c 'echo [0-1]' It returns the same:
root@server:~# LANG=C bash -norc -c 'echo [0-1]' 1 Thanks for Oğuz, I found that there is a file name `1` in this directory. After I removed it, it shows normally: root@server:~# rm 1 root@server:~# echo [0-1] [0-1] On server2 there is no such a file, so it just echo what I input. This problem doesn't related to the version. Here's the document: https://www.gnu.org/software/bash/manual/bash.html#index-pathname-expansion <https://www.gnu.org/software/bash/manual/bash.html#index-pathname-expansion> > After word splitting, unless the -f option has been set (see The Set Builtin > <https://www.gnu.org/software/bash/manual/bash.html#The-Set-Builtin>), Bash > scans each word for the characters ‘*’, ‘?’, and ‘[’. If one of these > characters appears, and is not quoted, then the word is regarded as a > pattern, and replaced with an alphabetically sorted list of filenames > matching the pattern (see Pattern Matching > <https://www.gnu.org/software/bash/manual/bash.html#Pattern-Matching>). If no > matching filenames are found, and the shell option nullglob is disabled, the > word is left unchanged. If the nullglob option is set, and no matches are > found, the word is removed. If the failglob shell option is set, and no > matches are found, an error message is printed and the command is not > executed. If the shell option nocaseglob is enabled, the match is performed > without regard to the case of alphabetic characters. -- Harry Lee
