Bash History Settings

#HISTORY SETTINGS
# ################
 
# don't put duplicate lines in the history. See bash(1) for more options
export HISTCONTROL=ignoredups
 
# ... and ignore same sucessive entries.
export HISTCONTROL=ignoreboth
 
# Increase Historysize
export HISTSIZE=10000
 
# check the window size after each command and, if necessary,
# update the values of LINES and COLUMNS.
shopt -s checkwinsize
 
# Ensure history is appended to .bash_history
shopt -s histappend
 
# Whenever displaying the prompt, write the previous line to disk
# This deals with the "multiple window"- history problem
export PROMPT_COMMAND='history -a'
 
# History- Search by pressing up or down
bind '"\e[A"':history-search-backward
bind '"\e[B"':history-search-forward