Configuration Information [Automatically generated, do not change]: Machine: x86_64 OS: linux-gnu Compiler: gcc Compilation CFLAGS: -g -O2 -fdebug-prefix-map=/build/bash-orJ5jM/bash-5.0=. -fstack-protector-strong -Wformat -Werror=format-security -Wall -Wno-parentheses -Wno-format-security uname output: Linux qipb7lnca 5.4.0-0.bpo.4-amd64 #1 SMP Debian 5.4.19-1~bpo10+1 (2020-03-09) x86_64 GNU/Linux Machine Type: x86_64-pc-linux-gnu
Bash Version: 5.0 Patch Level: 16 Release Status: release Description: I have discovered that PROMPT_COMMAND is not executed before the printing of PS1 in the following three situations: (1) <C-x><C-e> is used (2) histverify is set (3) completion suggestions are shown Repeat-By: # (1) <C-x><C-e> is used bash --norc PROMPT_COMMAND=echo # enter <C-x><C-e>, type out command "true" and save and quit # note that PROMPT_COMMAND is not executed # (2) histverify is set bash --norc PROMPT_COMMAND=echo shopt -s histverify !! # note that PS1 is printed w/ last command, but PROMPT_COMMAND # is not run # (3) completion suggestions are shown bash --norc PROMPT_COMMAND=echo he<Tab><Tab> # ... completions are listed # PS1 is printed after suggestions, but PROMPT_COMMAND is # not run Suggested Fix: I tried to add code to execute PROMPT_COMMAND directly inside of prompt_again(), but that didn't work as expected (the prompt would not even print when I tried this). It may be that PROMPT_COMMAND needs to be more tightly coupled to the code that prints PS1. I thought it would be as simple as that, but I guess not! In any case, I hope this helps improve Bash. Thanks a ton! -- Jason Franklin
