Hello bash-bughunters, please consider the following interactive lines:
$ echo $BASH_VERSION 5.1.4(1)-release $ uname -a Linux t1 5.10.0-13-amd64 #1 SMP Debian 5.10.106-1 (2022-03-17) x86_64 GNU/Linux $ echo $BASH_VERSION 5.1.4(1)-release $ sleep $(expr 60 - $(date +%s')) ; date bash: command substitution: line 417: unexpected EOF while looking for matching `'' bash: command substitution: line 418: syntax error: unexpected end of file bash: unexpected EOF while looking for matching `)' $ At this point it looks as if bash has encountered the problem and thus not executed the command line - fine. Things get strange when you enter a command, e.g. echo: $ echo > To get out of this you can enter the missing single quote followed by two closing braces: > ')) expr: non-integer argument sleep: missing operand Try 'sleep --help' for more information $ Now you can go on as expected, the last command in history is $'echo\n\'))' and the 'sleep ...' is not in the history at all. I would either have expected to get PS2 and no error messages after entering the line starting with sleep or being able to just enter the next command. Best regards Martin
