Configuration Information [Automatically generated, do not change]:
Machine: x86_64
OS: darwin19.6.0
Compiler: gcc
Compilation CFLAGS: -g -O2
uname output: Darwin hemma.home 19.6.0 Darwin Kernel Version 19.6.0: Tue Jun 21
21:18:39 PDT 2022; root:xnu-6153.141.66~1/RELEASE_X86_64 x86_64
Machine Type: x86_64-apple-darwin19.6.0
Bash Version: 5.2
Patch Level: 26
Release Status: release
Description:
In POSIX mode, echo incorrectly processes -e as an option unless xpg_echo
is also enabled.
This is a regression from 3.2 (or possibly some 4.x versions, haven't
tested), where --posix caused -e
to be treated correctly, even if it also enabled backslash processing.
~ % /bin/bash --posix
[macOS warning elided]
bash-3.2$ echo -e foo\\nbar
-e foo
bar
Repeat-By:
~/bash % bash
bash-5.2$ bash --posix -c 'echo -e foo\\nbar'
foo
bar
bash-5.2$ bash --posix -O xpg_echo -c 'echo -e foo\\nbar'
-e foo
bar
--
Clint Hepner
