Hello, I want to file a bug in bash. Configuration Information [Automatically generated, do not change]: Machine: x86_64 OS: linux-gnu Compiler: gcc Compilation CFLAGS: -g -O2 -flto=auto -ffat-lto-objects -flto=auto -ffat-lto-objects -fstack-protector-strong -Wformat -Werror=format-security -Wall uname output: Linux micha-VirtualBox 5.15.0-126-generic #136-Ubuntu SMP Wed Nov 6 10:38:22 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux Machine Type: x86_64-pc-linux-gnu
Bash Version: 5.1 Patch Level: 16 Release Status: release Description: In bash I do bash-5.1$ bash-5.1$ shopt| grep hist cmdhist on histappend off histreedit off histverify off lithist on bash-5.1$ echo $HISTTIMEFORMAT %F %T bash-5.1$ for i in a b c > do > echo $i > done a b c bash-5.1$ history 5 503 2024-11-21 13:44:22 ls 504 2024-11-21 13:44:31 shopt| grep hist 505 2024-11-21 13:45:11 echo $HISTTIMEFORMAT 506 2024-11-21 13:45:26 for i in a b c do echo $i done 507 2024-11-21 13:45:51 history 5 bash-5.1$ exit In a new shell I get bash-5.1$ history 10 491 2024-11-21 13:44:22 ls 492 2024-11-21 13:44:31 shopt| grep hist 493 2024-11-21 13:45:11 echo $HISTTIMEFORMAT 494 2024-11-21 13:45:26 for i in a b c 495 2024-11-21 13:48:30 do 496 2024-11-21 13:48:30 echo $i 497 2024-11-21 13:48:30 done 498 2024-11-21 13:45:51 history 5 499 2024-11-21 13:48:27 exit 500 2024-11-21 13:48:46 history 10 bash-5.1$ The previously embedded lines (the for loop) now have got a timestamp (the one from the shell start?)! This is unwanted behavior, because now a cursor-up brings the separated lines. The history file still correctly shows the embedded lines: bash-5.1$ tail .bash_history echo $HISTTIMEFORMAT #1732192406 for i in a b c do echo $i done #1732192443 history 5 #1732192600 exit
