如果用的是zsh，则在~/.zshrc中加入：
export HISTCONTROL=ignoredups:erasedups # no duplicate entries
export HISTSIZE=100000 # big big history
export HISTFILESIZE=100000 # big big history
setopt extendedhistory # append to history, don't overwrite it
# Save and reload the history after each command finishes
export PROMPT_COMMAND="history -a; history -c; history -r; $PROMPT_COMMAND"
如果是bash，则在~/.bashrc中加入：
export HISTCONTROL=ignoredups:erasedups # no duplicate entries
export HISTSIZE=100000 # big big history
export HISTFILESIZE=100000 # big big history
shopt -s histappend # append to history, don't overwrite it
# Save and reload the history after each command finishes
export PROMPT_COMMAND="history -a; history -c; history -r; $PROMPT_COMMAND"