Configuration Information [Automatically generated, do not change]: Machine: aarch64 OS: linux-gnu Compiler: gcc Compilation CFLAGS: -g -O2 uname output: Linux nixos 6.1.77 #1-NixOS SMP Mon Feb 5 20:13:03 UTC 2024 aarch64 GNU/Linux Machine Type: aarch64-unknown-linux-gnu
Bash Version: 5.2 Patch Level: 15 Release Status: release Description: In bash, the very useful shell-expand-line (`M-C-e`) expands command substitutions to their contents, on the current line. However, this works very strangely for commands without shebangs. Symptoms further described in "Repeat-By" section. Replicated on kitty and mac Terminal on NixOS and macOS with 5.2.15(1)-release (built by Nix). Replicated on kitty and mac Terminal on macOS with 5.2.32(1)-release (built from source). Does NOT replicate on kitty and mac Terminal on macOS with 3.2.57(1)-release (provided by macOS 14.4.1 (23E224)` (Sonoma)). Previously posted on https://unix.stackexchange.com/questions/781355/shell-expand-line-and-shebangs Repeat-By: 1. Create a simple executable file with and without shebang. echo echo hi >> test-no-shebang chmod +x test-no-shebang echo '#!/bin/sh' >> test-shebang echo echo hi >> test-shebang chmod +x test-shebang 2. Enter $(./test-shebang), then M-C-e. This works as expected, expanding the line to "hi". C-_ works normally, undoing the expansion. 3. Enter $(./test-no-shebang), then M-C-e. This works strangely, indeed expanding the line to "hi", but removing the prompt in front of the line. C-_ does not work, printing the character literally instead, and nor do most bindings, but C-u kind of works, successfully clearing the line (but not clearing the "hi").
