Bash History Modifications

.bashrc

##
#  Customize our history
##

#  Number of commands stored in current session's history
HISTSIZE=5000

#  Filesize of ~/.bash_history
HISTFILESIZE=10000

#  Append instead of overwrite the history
shopt -s histappend

#  Ignore duplicate entries
export HISTCONTROL=ignoredups:erasedups:ignorespace

#  Ignore specific commands
export HISTIGNORE="pwd:ls:ls -ltr:history"

#  Automatically append command to history without requiring the session to end
export PROMPT_COMMAND="history -a; history -c; history -r; $PROMPT_COMMAND"

#  Display the datetime when the command was executed
HISTTIMEFORMAT="%m/%d/%y%r "