1.找到.bashrc文件

登陆 linux 启动 bash时首先会去读取 ~/.bash_profile文件，这样 ~/.bashrc也就得到执行了，
你的个性化设置也就生效了

2.编辑.bashrc文件

# If this is an xterm set the title to user@host:dir
case "$TERM" in
xterm*|rxvt*)PS1="\[\e]0;${debian_chroot:+($debian_chroot)}\u@\h: \w\a\]$PS1";;
*);;
esac# enable color support of ls and also add handy aliases
if [ -x /usr/bin/dircolors ]; thentest -r ~/.dircolors && eval "$(dircolors -b ~/.dircolors)" || eval "$(dircolors -b)"alias ls='ls --color=auto'#alias dir='dir --color=auto'#alias vdir='vdir --color=auto'alias grep='grep --color=auto'alias fgrep='fgrep --color=auto'alias egrep='egrep --color=auto'
fi# colored GCC warnings and errors
#export GCC_COLORS='error=01;31:warning=01;35:note=01;36:caret=01;32:locus=01:quote=01'# some more ls aliases
alias ll='ls -alF'
alias la='ls -A'
alias l='ls -CF'
alias smoke='cd /home/array/backup_101/src'
alias report='cd /home/array/backup_101/src/report/*gaojs*/aaa/http'# Add an "alert" alias for long running commands.  Use like so:
#   sleep 10; alert
alias alert='notify-send --urgency=low -i "$([ $? = 0 ] && echo terminal || echo error)" "$(history|tail -n1|sed -e '\''s/^\s*[0-9]\+\s*//;s/[;&|]\s*alert$//'\'')"'# Alias definitions.
# You may want to put all your additions into a separate file like
# ~/.bash_aliases, instead of adding them here directly.
# See /usr/share/doc/bash-doc/examples in the bash-doc package.if [ -f ~/.bash_aliases ]; then
#     . ~/.bash_aliases
fi# enable programmable completion features (you don't need to enable
# this, if it's already enabled in /etc/bash.bashrc and /etc/profile
# sources /etc/bash.bashrc).
if ! shopt -oq posix; thenif [ -f /usr/share/bash-completion/bash_completion ]; then. /usr/share/bash-completion/bash_completionelif [ -f /etc/bash_completion ]; then. /etc/bash_completionfi
fi
export PATH=~/src/bin:$PATH
export PYTHONPATH=~/src:$PYTHONPATH
".bashrc" [readonly] 121L, 3989C

3.修改完之后，source .bashrc，即可生效