一个人的.bashrc可以添加什么有用的东西？ [关闭]

#1 楼

extract () {
   if [ -f  ] ; then
       case  in
           *.tar.bz2)   tar xvjf     ;;
           *.tar.gz)    tar xvzf     ;;
           *.bz2)       bunzip2      ;;
           *.rar)       unrar x        ;;
           *.gz)        gunzip       ;;
           *.tar)       tar xvf      ;;
           *.tbz2)      tar xvjf     ;;
           *.tgz)       tar xvzf     ;;
           *.zip)       unzip        ;;
           *.Z)         uncompress   ;;
           *.7z)        7z x         ;;
           *)           echo "don't know how to extract ''..." ;;
       esac
   else
       echo "'' is not a valid file!"
   fi
 }

#2 楼

RESET="\[7\]"
NORMAL="\[3[0m\]"
RED="\[3[31;1m\]"
YELLOW="\[3[33;1m\]"
WHITE="\[3[37;1m\]"
SMILEY="${WHITE}:)${NORMAL}"
FROWNY="${RED}:(${NORMAL}"
SELECT="if [ $? = 0 ]; then echo \"${SMILEY}\"; else echo \"${FROWNY}\"; fi"

# Throw it all together 
PS1="${RESET}${YELLOW}\h${NORMAL} \`${SELECT}\` ${YELLOW}>${NORMAL} "

#3 楼

export LESS_TERMCAP_mb=$'\E[01;31m'
export LESS_TERMCAP_md=$'\E[01;31m'
export LESS_TERMCAP_me=$'\E[0m'
export LESS_TERMCAP_se=$'\E[0m'
export LESS_TERMCAP_so=$'\E[01;44;33m'
export LESS_TERMCAP_ue=$'\E[0m'
export LESS_TERMCAP_us=$'\E[01;32m'

export PAGER="/usr/bin/most -s"

#4 楼

up(){
  local d=""
  limit=
  for ((i=1 ; i <= limit ; i++))
    do
      d=$d/..
    done
  d=$(echo $d | sed 's/^\///')
  if [ -z "$d" ]; then
    d=..
  fi
  cd $d
}

#5 楼

alias claudius="ssh dinomite@claudius"

alias ..="cd .."
alias ...="cd ../.."
alias ....="cd ../../.."
alias .....="cd ../../../.."

alias ll="ls -l"
alias lo="ls -o"
alias lh="ls -lh"
alias la="ls -la"
alias sl="ls"
alias l="ls"
alias s="ls"

export HISTFILESIZE=20000
export HISTSIZE=10000
shopt -s histappend
# Combine multiline commands into one in history
shopt -s cmdhist
# Ignore duplicates, ls without options and builtin commands
HISTCONTROL=ignoredups
export HISTIGNORE="&:ls:[bf]g:exit"

function fawk {
    first="awk '{print "
    last="}'"
    cmd="${first}$${last}"
    eval $cmd
}

#6 楼

if [ -f ~/.bash_private.gpg ]; then
   eval "$(gpg --decrypt ~/.bash_private.gpg 2>/dev/null)"
fi

alias MYsql='mysql -uadmin -psecret'
wglatest(){ wget -O https://admin:secret@server.com/latest; }

#7 楼

#8 楼

#9 楼

#use extra globing features. See man bash, search extglob.
shopt -s extglob
#include .files when globbing.
shopt -s dotglob
#When a glob expands to nothing, make it an empty string instead of the literal characters.
shopt -s nullglob
# fix spelling errors for cd, only in interactive shell
shopt -s cdspell
# vi mode
set -o vi

s() { # do sudo, or sudo the last command if no argument given
    if [[ $# == 0 ]]; then
        sudo $(history -p '!!')
    else
        sudo "$@"
    fi
}

prompt_command() {
    p=$PWD  # p is much easier to type in interactive shells
    # a special IFS should be limited to 1 liners or inside scripts.
    # Otherwise it only causes mistakes.
    unset IFS
}
PROMPT_COMMAND=prompt_command


# smart advanced completion, download from
# http://bash-completion.alioth.debian.org/
if [[ -f $HOME/local/bin/bash_completion ]]; then
    . $HOME/local/bin/bash_completion
fi


extract () { # extract files. Ignore files with improper extensions.
    local x
    ee() { # echo and execute
        echo "$@"
         ""
    }
    for x in "$@"; do
        [[ -f $x ]] || continue
        case "$x" in
            *.tar.bz2 | *.tbz2 )    ee "tar xvjf" "$x"  ;;
            *.tar.gz | *.tgz ) ee "tar xvzf" "$x"   ;;
            *.bz2 )             ee "bunzip2" "$x"   ;;
            *.rar )             ee "unrar x" "$x"   ;;
            *.gz )              ee "gunzip" "$x"    ;;
            *.tar )             ee "tar xvf" "$x"   ;;
            *.zip )             ee "unzip" "$x"     ;;
            *.Z )               ee "uncompress" "$x" ;;
            *.7z )              ee "7z x" "$x"      ;;
        esac
    done
}

#10 楼

shopt -o noclobber

#11 楼

function __setprompt {
  local BLUE="\[3[0;34m\]"
  local NO_COLOUR="\[3[0m\]"
  local SSH_IP=`echo $SSH_CLIENT | awk '{ print  }'`
  local SSH2_IP=`echo $SSH2_CLIENT | awk '{ print  }'`
  if [ $SSH2_IP ] || [ $SSH_IP ] ; then
    local SSH_FLAG="@\h"
  fi
  PS1="$BLUE[$(date +%H:%M)][\u$SSH_FLAG:\w]\$ $NO_COLOUR"
  PS2="$BLUE>$NO_COLOUR "
  PS4='$BLUE+$NO_COLOUR '
}
__setprompt

[17:57][user:~]$

[17:57][user@machine:~]$

#12 楼

if [ "$PS1" != "" -a "${STARTED_SCREEN:-x}" = x  -a "${SSH_TTY:-x}" != x ]
then
STARTED_SCREEN=1 ; export STARTED_SCREEN
[ -d $HOME/lib/screen-logs ] || mkdir -p $HOME/lib/screen-logs

sleep 1
screen -U -RR && exit 0

echo "Screen failed! continuing with normal bash startup"
fi

#13 楼

alias s1="screen -dr chaos1"
alias s2="screen -dr chaos2"
alias s3="screen -dr chaos3"
# ... and so on

#14 楼

# ignore case, long prompt, exit if it fits on one screen, allow colors for ls and grep colors
export LESS="-iMFXR"

# must press ctrl-D 2+1 times to exit shell
export IGNOREEOF="2"

# allow ctrl-S for history navigation (with ctrl-R)
stty -ixon

#15 楼

# stop the pc speaker ever annoying me :)
setterm -bfreq 0

# don't put duplicate lines in the history. See bash(1) for more options
HISTCONTROL=ignoredups
# ... and ignore same sucessive entries.
HISTCONTROL=ignoreboth

# Expand the history size
HISTFILESIZE=10000 
HISTSIZE=100

# commands with leading space do not get added to history
HISTCONTROL=ignorespace

# am I on the internet?
alias p4='ping 4.2.2.2 -c 4'

# pwsafe
alias pw='pwsafe -p'

# ls aliases
alias ll='ls -l'
alias la='ls -A'
alias l='ls -CF'
alias lt='ls -laptr' #oldest first sort
alias labc='ls -lap' #alphabetical sort

# cd aliases
alias ..='cd ..'
alias ...='cd ../..'
alias ....='cd ../../..'

# cd into the old directory
alias bd='cd "$OLDPWD"'

# install a package and automatically respond yes to confirmation prompt
alias ins="sudo aptitude install"

# remove a package and its configuration files
alias remp="sudo aptitude purge"

# search for a package - apt-cache and aptitude search in different ways
# so have both
alias searchc="apt-cache search"
alias search="aptitude search"
alias show="aptitude show"

#16 楼

alias logs="find /var/log -type f -exec file {} \; | grep 'text' | cut -d' ' -f1 | sed -e's/:$//g' | grep -v '[0-9]$' | xargs tail -f"

#17 楼

export GREP_OPTIONS='--color=auto'

#18 楼

alias folders='find . -maxdepth 1 -type d -print0 | xargs -0 du -sk | sort -rn'

#19 楼

#20 楼

shopt -s checkwinsize

shopt -s histappend
PROMPT_COMMAND='history -a'

#21 楼

#22 楼

export HISTCONTROL=ignoredups
export HISTIGNORE="&:ls:bg:fg"

# set variable identifying the chroot you work in (used in the prompt below)
if [ -z "$debian_chroot" ] && [ -r /etc/debian_chroot ]; then
    debian_chroot=$(cat /etc/debian_chroot)
fi

# shows you if you are in a chroot or in a git repository
PS1='${debian_chroot:+($debian_chroot)}\[3[01;30m\]\h\[3[00m\]:\[3[01;34m\]\W\[3[00m\]$(__git_ps1)$ '


if [ -f /etc/bash_completion ]; then
    . /etc/bash_completion
fi

# two handy single-letter aliases

alias u='ls -hltr'
alias e='du * -cs | sort -nr | head'
alias g='grep -C5 --color=auto'

# creates a temp dir and cds into it
alias td='pushd $(mktemp -d)'

# find <dir> <file name regexp> <file contents regexp>
function fing { find "" -name "" -exec grep -H "" "{}" \; }

# shows "git diff" across any project in any subdirectory
alias git-differ='for g in $(find . -name ".git"); do g=${g%%.git};printf "$g\t\t\t";pu $g >/dev/null && git diff |wc -l; p >/dev/null; done'

# does git house keeping across any project in any subdirectory
alias git-housekeep='for g in $(find . -name ".git"); do g=${g%%.git};echo $g;pu $g && git repack && git gc --auto && p;done'

# Debian update
alias apg='aptitude update && aptitude dist-upgrade && aptitude clean'

# Quick way to serve files in HTTP from the local dir
alias webs='python -m SimpleHTTPServer'

#23 楼

export HISTFILESIZE=1000000000
export HISTSIZE=1000000

#24 楼

alias ls='ls -F --color=auto'
alias l='ls'
alias ll='ls -ahl'
alias ..='cd ..'
alias ...='cd ../..'
alias mv='mv -i'

mkcd() {
        if [ $# != 1 ]; then
                echo "Usage: mkcd <dir>"
        else
                mkdir -p  && cd 
        fi
}

# Git related
alias gs='git status'
alias gc='git commit'
alias ga='git add'
alias gd='git diff'
alias gb='git branch'
alias gl='git log'
alias gsb='git show-branch'
alias gco='git checkout'
alias gg='git grep'
alias gk='gitk --all'
alias gr='git rebase'
alias gri='git rebase --interactive'
alias gcp='git cherry-pick'
alias grm='git rm'

#25 楼

cl()
{
        last_dir="$(ls -Frt | grep '/$' | tail -n1)"
        if [ -d "$last_dir" ]; then
                cd "$last_dir"
        fi
}

rd(){
    pwd > "$HOME/.lastdir_"
}

crd(){
        lastdir="$(cat "$HOME/.lastdir_")">/dev/null 2>&1
        if [ -d "$lastdir" ]; then
                cd "$lastdir"
        else
                echo "no existing directory stored in buffer ">&2
        fi
}

#26 楼

PS1='\n[\u@\h]: \w\n$?> '

#27 楼

for prog in $HOME/local/*
do
    if [ -d "$prog/bin" ]; then
        export PATH=$prog/bin:$PATH
    fi
    if [ -d "$prog/include" ]; then
        export C_INCLUDE_PATH=$prog/include:$C_INCLUDE_PATH
    fi
    if [ -d "$prog/lib" ]; then
        export LD_LIBRARY_PATH=$prog/lib:$LD_LIBRARY_PATH
        export LIBRARY_PATH=$prog/lib:$LIBRARY_PATH
    fi
    if [ -d "$prog/man" ]; then
        export MANPATH=$prog/man:$MANPATH
    fi
    if [ -d "$prog/share/man" ]; then
        export MANPATH=$prog/share/man:$MANPATH
    fi
done

#!/usr/bin/env bash

RUNNING=`screen -ls | grep irc`
if [ "" = "$RUNNING" ]; then
   screen -S irc irssi
else
   screen -dr irc
fi

#28 楼

if [ "$TERM" != "dumb" ]; then
    if [ `uname` == "Darwin" ]; then
       alias ls='ls -G'
    else
       eval "`dircolors -b`"
       alias ls='ls --color=auto'
    fi
fi

bu () { cp  ~/.backup/`basename `-`date +%Y%m%d%H%M`.backup ; }

#29 楼

alias ssh='if [ "$(ssh-add -l)" = "The agent has no identities." ]; then ssh-add; fi; /usr/bin/ssh "$@"'

#30 楼

complete -o default -o nospace -W "$(/usr/bin/env ruby -ne 'puts $_.split(/[,\s]+/)[1..-1].reject{|host| host.match(/\*|\?/)} if $_.match(/^\s*Host\s+/);' < $HOME/.ssh/config)" scp sftp ssh

bind "set completion-ignore-case on" # note: bind used instead of sticking these in .inputrc
bind "set bell-style none" # no bell
bind "set show-all-if-ambiguous On" # show list automatically, without double tab

alias nospotlight='sudo mdutil -a -i off'
alias cleardnscache='sudo killall -HUP mDNSResponder'
alias ldd='otool -L'
alias seq='jot - '
alias eject='drutil eject'