If I run ========== cat >> usertmp <<EOF > something here > something else here > EOF ==========
And I run history, I see: ========== 44 2015-12-26 17:27:42 cat >> usertmp <<EOF something here something else here EOF ========== BUT, if I exit and start a new bash, causing .bash_history to be written and freshly read and parsed, then I run history, I see: ========== 50 2015-12-26 17:27:42 cat >> usertmp <<EOF 51 2015-12-26 17:31:37 something here 52 2015-12-26 17:31:37 something else here 53 2015-12-26 17:31:37 EOF ========== It appears bash sends an executed quoted multiline command to the in-memory history list as one command. But, it appears bash when parsing .bash_history is unable to distinguish quoted multiline commands from separate commands, and reads them into the in-memory history list separately. Doing so, if the user is using history timestamps, it appears to properly use the timestamp for the first line, and improperly use the modified timestamp on the .bash_history for subsequent lines. ---Full history customizations--- ========== shopt -s histappend export HISTSIZE=-1 export HISTFILESIZE=-1 export HISTTIMEFORMAT="%Y-%m-%d %H:%M:%S " export HISTCONTROL=ignorespace ==========
