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Alias appends space character to end of non-latin string

From: Vangelis Natsios
Subject: Alias appends space character to end of non-latin string
Date: Fri, 1 Jul 2022 11:07:18 +0300

Configuration Information [Automatically generated, do not change]:
Machine: x86_64
OS: linux-gnu
Compiler: gcc
Compilation CFLAGS: -g -O2 -fdebug-prefix-map=/build/bash-Smvct5/bash-5.0=.
-fstack-protector-strong -Wformat -Werror=format-security -Wall
-Wno-parentheses -Wno-format-security
uname output: Linux peachville 5.13.0-51-generic #58~20.04.1-Ubuntu SMP Tue
Jun 14 11:29:12 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
Machine Type: x86_64-pc-linux-gnu

Bash Version: 5.0
Patch Level: 17
Release Status: release


When creating an alias containing a path ending with a non-latin (e.g.
greek) directory name, a space character is appended to the end of the
path, causing the alias to fail.
This does not happen when the non-latin part is in the middle and not the
end of the path. This behaviour is new to bash v.5.0, worked as expected in


Command line:
vnatsios@peachville:~$ mkdir $HOME/αβγ
vnatsios@peachville:~$ mkdir $HOME/αβγ/abc
vnatsios@peachville:~$ alias lstest1='ls -l $HOME/αβγ'
vnatsios@peachville:~$ alias lstest2='ls -l $HOME/αβγ/abc'
vnatsios@peachville:~$ lstest1
ls: cannot access '/home/vnatsios/αβγ ': No such file or directory
vnatsios@peachville:~$ lstest2
total 0

Shell script:
shopt -s expand_aliases
rm -rf $HOME/αβγ
mkdir $HOME/αβγ
mkdir $HOME/αβγ/abc
alias lstest1='ls -l $HOME/αβγ'
alias lstest2='ls -l $HOME/αβγ/abc'

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