Hi,
please see below for the copy of bash-bug:
Configuration Information [Automatically generated, do not change]:
Machine: x86_64
OS: linux-gnu
Compiler: gcc
Compilation CFLAGS: -g -O2 -fstack-protector-strong -Wformat
-Werror=format-security -Wall
uname output: Linux SLWS573 5.15.167.4-microsoft-standard-WSL2 #1 SMP Tue Nov 5
00:21:55 UTC 2024 x86_64 GNU/Linux
Machine Type: x86_64-pc-linux-gnu
Bash Version: 5.2
Patch Level: 15
Release Status: release
Description:
Built-in `[ -a ... ]` returns true when false, negation with `!` is
also very strange.
`[[` is not affected, neither is `/bin/[`.
Repeat-By:
* touch file
* [ -a file ] && echo exists => exists
* [ ! -a file ] && echo exists => exists
* [ ! ! -a file ] && echo exists => (nothing)
* [ ! ! ! -a file ] && echo exists => (nothing)
* [ ! ! ! ! -a file ] && echo exists => exists
Any additional negation works correctly, with false and true
alternating.
Best regards
Tibor Klüver
Softwareentwickler
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