Bash configuration for better history archive

.bashrc

# first, install fzf
#   https://github.com/junegunn/fzf
# Windows:
#   choco install fzf
# Arch:
#   sudo pacman -S fzf
# Mac:
#   brew install fzf
#   $(brew --prefix)/opt/fzf/install

# use this block with fzf

HISTCONTROL="ignoredups"
unset HISTFILESIZE
PROMPT_COMMAND='history -a'


#####################
# use this block to create one history file per shell (harder to search, but better archival) -- doesn't work with fzf

HOSTNAME="$(hostname)"
HOSTNAME_SHORT="${HOSTNAME%%.*}"
HISTCONTROL="ignoredups"
unset HISTFILESIZE
HISTFILE="${HOME}/.history/$(date -u +%Y/%m/%d.%H.%M.%S)_${HOSTNAME_SHORT}_$$"
PROMPT_COMMAND='mkdir -p $(dirname "${HISTFILE}")&&history -a'
#FZF_CTRL_R_OPTS=

hag ()
{
  find ~/.history/ -type f | sort | xargs -d "\n" ag "$@"
}