.bashrc

   1 #!/bin/bash
   2 # ~/.bashrc: executed by bash(1) for non-login shells.
   3 # A basically sane bash environment.
   4 # Tony Duckles <http://nynim.org/about/> (based on http://github.com/rtomayko/dotfiles)
   5
   6 # short-circuit for non-interactive sessions
   7 [ -z "$PS1" ] && return
   8
   9 # the basics
  10 : ${HOME=~}
  11 : ${LOGNAME=$(id -un)}
  12 : ${UNAME=$(uname)}
  13 # strip OS type and version under Cygwin (e.g. CYGWIN_NT-5.1 => Cygwin)
  14 UNAME=${UNAME/CYGWIN_*/Cygwin}
  15
  16 # complete hostnames from this file
  17 HOSTFILE=~/.ssh/known_hosts
  18
  19 # readline config
  20 INPUTRC=~/.inputrc
  21
  22 # if current $TERM isn't valid, fall-back to TERM=xterm-color or TERM=xterm
  23 case $(tput colors 2>&1) in
  24     tput* )
  25         export TERM=xterm-color
  26         case $(tput colors 2>&1) in
  27             tput* )
  28                 export TERM=xterm
  29                 ;;
  30         esac
  31         ;;
  32 esac
  33
  34 if [ "$UNAME" = "Darwin" ]; then
  35     # Fink init, for OSX
  36     test -r /sw/bin/init.sh &&
  37         source /sw/bin/init.sh
  38 fi
  39
  40 # ----------------------------------------------------------------------
  41 #  SHELL OPTIONS
  42 # ----------------------------------------------------------------------
  43
  44 # bring in system bashrc
  45 test -r /etc/bashrc &&
  46     . /etc/bashrc
  47
  48 # notify of bg job completion immediately
  49 set -o notify
  50
  51 # shell opts. see bash(1) for details
  52 shopt -s cdspell >/dev/null 2>&1
  53 shopt -s extglob >/dev/null 2>&1
  54 shopt -s histappend >/dev/null 2>&1
  55 shopt -s hostcomplete >/dev/null 2>&1
  56 shopt -s interactive_comments >/dev/null 2>&1
  57 shopt -u mailwarn >/dev/null 2>&1
  58 shopt -s no_empty_cmd_completion >/dev/null 2>&1
  59
  60 # don't check for new mail
  61 unset MAILCHECK
  62
  63 # disable core dumps
  64 ulimit -S -c 0
  65
  66 # default umask
  67 umask 0022
  68
  69 # ----------------------------------------------------------------------
  70 # PATH
  71 # ----------------------------------------------------------------------
  72
  73 # we want the various sbins on the path along with /usr/local/bin
  74 PATH="$PATH:/usr/local/sbin:/usr/sbin:/sbin"
  75 PATH="/usr/local/bin:$PATH"
  76
  77 # put ~/bin on PATH if exists
  78 test -d "$HOME/bin" &&
  79     PATH="$HOME/bin:$PATH"
  80
  81 # put /opt/csw/* on PATH if exists (OpenCSW Solaris packages)
  82 test -d "/opt/csw" &&
  83     PATH="/opt/csw/sbin:/opt/csw/bin:$PATH"
  84
  85 # ----------------------------------------------------------------------
  86 # ENVIRONMENT CONFIGURATION
  87 # ----------------------------------------------------------------------
  88
  89 # detect interactive shell
  90 case "$-" in
  91     *i*) INTERACTIVE=yes ;;
  92     *)   unset INTERACTIVE ;;
  93 esac
  94
  95 # detect login shell
  96 case "$0" in
  97    -*) LOGIN=yes ;;
  98    *)  unset LOGIN ;;
  99 esac
 100
 101 # setup locale. Try to enable en_US locale w/ utf-8 encodings
 102 # (if not already configured), but do graceful fall-back.
 103 lclist=$(locale -a | grep en_US)
 104 if test -n "$(echo $lclist | grep UTF-8)"; then
 105     : ${LANG:="en_US.UTF-8"}
 106     : ${LANGUAGE:="en"}
 107     : ${LC_CTYPE:="en_US.UTF-8"}
 108     : ${LC_ALL:="en_US.UTF-8"}
 109 elif test -n "$(echo $lclist | grep utf8)"; then
 110     : ${LANG:="en_US.utf8"}
 111     : ${LANGUAGE:="en"}
 112     : ${LC_CTYPE:="en_US.utf8"}
 113     : ${LC_ALL:="en_US.utf8"}
 114 elif test -n "$(echo $lclist | grep ISO8859-1)"; then
 115     : ${LANG:="en_US.ISO8859-1"}
 116     : ${LANGUAGE:="en"}
 117     : ${LC_CTYPE:="en_US.ISO8859-1"}
 118     : ${LC_ALL:="en_US.ISO8859-1"}
 119 else
 120     : ${LANG:="en_US"}
 121     : ${LANGUAGE:="en"}
 122     : ${LC_CTYPE:="en_US"}
 123     : ${LC_ALL:="en_US"}
 124 fi
 125 export LANG LANGUAGE LC_CTYPE LC_ALL
 126 unset lclist
 127
 128 # ignore backups, CVS directories, python bytecode, vim swap files
 129 FIGNORE="~:CVS:#:.pyc:.swp:.swa:apache-solr-*"
 130
 131 # history stuff
 132 HISTCONTROL=ignoreboth
 133 HISTFILESIZE=10000
 134 HISTSIZE=10000
 135
 136 # ----------------------------------------------------------------------
 137 # PAGER / EDITOR
 138 # ----------------------------------------------------------------------
 139
 140 # See what we have to work with ...
 141 HAVE_VIM=$(command -v vim)
 142
 143 # EDITOR
 144 test -n "$HAVE_VIM" &&
 145     EDITOR=vim ||
 146     EDITOR=vi
 147 export EDITOR
 148
 149 # PAGER
 150 if test -n "$(command -v less)" ; then
 151     PAGER="less"
 152     MANPAGER="less"
 153     LESS="-FiRX"
 154     export LESS
 155 else
 156     PAGER=more
 157     MANPAGER="$PAGER"
 158 fi
 159 export PAGER MANPAGER
 160
 161 # Ack
 162 ACK_PAGER="$PAGER"
 163 ACK_PAGER_COLOR="$PAGER"
 164
 165 # ----------------------------------------------------------------------
 166 # PROMPT
 167 # ----------------------------------------------------------------------
 168
 169 # http://en.wikipedia.org/wiki/ANSI_escape_code#graphics
 170
 171 if [ "$UID" = 0 ]; then
 172     # root
 173     PS_C1="\[\033[1;31m\]"  # red
 174     PS_C2="\[\033[0;37m\]"  # grey
 175     PS_P="#"
 176 else
 177     case "$UNAME" in
 178         Cygwin)
 179             PS_C1="\[\033[0;32m\]"  # green
 180             PS_C2="\[\033[0;37m\]"  # grey
 181             ;;
 182         Darwin)
 183             PS_C1="\[\033[1;97m\]"  # white
 184             PS_C2="\[\033[0;37m\]"  # grey
 185             ;;
 186         SunOS | AIX)
 187             PS_C1="\[\033[1;96m\]"  # cyan
 188             PS_C2="\[\033[0;36m\]"  # cyan
 189             ;;
 190         *)
 191             PS_C1="\[\033[1;93m\]"  # yellow
 192             PS_C2="\[\033[0;33m\]"  # brown
 193     esac
 194     PS_P="\$"
 195 fi
 196
 197 prompt_simple() {
 198     unset PROMPT_COMMAND
 199     PS1="[\u@\h:\w]\$ "
 200     PS2="> "
 201 }
 202
 203 prompt_compact() {
 204     unset PROMPT_COMMAND
 205     PS1="${PS_C1}${PS_P}\[\033[0m\] "
 206     PS2="> "
 207 }
 208
 209 prompt_color() {
 210     PS1="\[\033[0;90m\][${PS_C1}\u@\h\[\033[0m\]\[\033[0;90m\]:${PS_C2}\w\[\033[0;90m\]]${PS_P}\[\033[0m\] "
 211     PS2="> "
 212 }
 213
 214 # ----------------------------------------------------------------------
 215 # MACOS X / DARWIN SPECIFIC
 216 # ----------------------------------------------------------------------
 217
 218 if [ "$UNAME" = Darwin ]; then
 219     # put ports on the paths if /opt/local exists
 220     test -x /opt/local -a ! -L /opt/local && {
 221         PORTS=/opt/local
 222
 223         # setup the PATH and MANPATH
 224         PATH="$PORTS/bin:$PORTS/sbin:$PATH"
 225         MANPATH="$PORTS/share/man:$MANPATH"
 226
 227         # nice little port alias
 228         alias port="sudo nice -n +18 $PORTS/bin/port"
 229     }
 230 fi
 231
 232 # ----------------------------------------------------------------------
 233 # ALIASES / FUNCTIONS
 234 # ----------------------------------------------------------------------
 235
 236 # alias 'vi' to 'vim' if Vim is installed
 237 vim="$(type -P vim)"
 238 test -n "$vim" && {
 239     alias vi='vim'
 240 }
 241 unset vim
 242
 243 # disk usage with human sizes and minimal depth
 244 alias du1='du -h --max-depth=1'
 245 alias fn='find . -name'
 246 alias hi='history | tail -20'
 247
 248 # For Solaris, use GNU versions of grep and sed
 249 if [ "$UNAME" = SunOS ]; then
 250     test -x /usr/gnu/bin/grep && alias grep="/usr/gnu/bin/grep"
 251     test -x /usr/gnu/bin/sed  && alias sed="/usr/gnu/bin/sed"
 252 fi
 253
 254 # Alias csh-style "rebash" to bash equivalent
 255 alias rehash="hash -r"
 256
 257 # ----------------------------------------------------------------------
 258 # BASH COMPLETION
 259 # ----------------------------------------------------------------------
 260
 261 test -z "$BASH_COMPLETION" && {
 262     bash=${BASH_VERSION%.*}; bmajor=${bash%.*}; bminor=${bash#*.}
 263     test -n "$PS1" && test $bmajor -gt 1 && {
 264         # search for a bash_completion file to source
 265         for f in /usr/local/etc/bash_completion \
 266                  /usr/pkg/etc/bash_completion \
 267                  /opt/local/etc/bash_completion \
 268                  /etc/bash_completion
 269         do
 270             test -f $f && {
 271                 . $f
 272                 break
 273             }
 274         done
 275     }
 276     unset bash bmajor bminor
 277 }
 278
 279 # override and disable tilde expansion
 280 _expand() {
 281     return 0
 282 }
 283
 284 # ----------------------------------------------------------------------
 285 # LS AND DIRCOLORS
 286 # ----------------------------------------------------------------------
 287
 288 # we always pass these to ls(1)
 289 unset LS_COMMON
 290 ## OS-specific options
 291 #case "$UNAME" in
 292 #    "Linux" ) LS_COMMON="--color=auto";;
 293 #    "Cygwin" ) LS_COMMON="--color=auto";;
 294 #    "Darwin" ) LS_COMMON="--color=auto";;
 295 #esac
 296
 297 # if the dircolors utility is available, set that up for ls
 298 dircolors="$(type -P gdircolors dircolors | head -1)"
 299 test -n "$dircolors" && {
 300     COLORS=/etc/DIR_COLORS
 301     test -e "/etc/DIR_COLORS.$TERM"   && COLORS="/etc/DIR_COLORS.$TERM"
 302     test -e "$HOME/.dircolors"        && COLORS="$HOME/.dircolors"
 303     test ! -e "$COLORS"               && COLORS=
 304     eval `$dircolors --sh $COLORS`
 305 }
 306 unset dircolors
 307
 308 # enable color ls output if available
 309 test -n "$COLORS" &&
 310     LS_COMMON="--color=auto $LS_COMMON"
 311
 312 # setup the main ls alias if we've established common args
 313 test -n "$LS_COMMON" &&
 314     alias ls="command ls $LS_COMMON"
 315
 316 # these use the ls aliases above
 317 alias ll="ls -l"
 318 alias l.="ls -d .*"
 319 alias ll.="ls -ld .*"
 320 alias lla="ls -la"
 321
 322 # setup color grep output if available
 323 if [ -n "$COLORS" ]; then
 324     case "$UNAME" in
 325         "SunOS")
 326             # For Solaris, use the GNU version of grep for color support
 327             test -x /usr/gnu/bin/grep && alias grep="/usr/gnu/bin/grep --color=auto"
 328             ;;
 329         *)
 330             alias grep="command grep --color=auto"
 331             ;;
 332     esac
 333 fi
 334
 335 # --------------------------------------------------------------------
 336 # MISC COMMANDS
 337 # --------------------------------------------------------------------
 338
 339 # push SSH public key to another box
 340 push_ssh_cert() {
 341     local _host
 342     test -f ~/.ssh/id_rsa.pub || ssh-keygen -t rsa -b 4096
 343     for _host in "$@";
 344     do
 345         echo $_host
 346         ssh $_host 'cat >> ~/.ssh/authorized_keys' < ~/.ssh/id_rsa.pub
 347     done
 348 }
 349
 350 # --------------------------------------------------------------------
 351 # PATH MANIPULATION FUNCTIONS
 352 # --------------------------------------------------------------------
 353
 354 # Usage: pls [<var>]
 355 # List path entries of PATH or environment variable <var>.
 356 pls () { eval echo \$${1:-PATH} |tr : '\n'; }
 357
 358 # Usage: pshift [-n <num>] [<var>]
 359 # Shift <num> entries off the front of PATH or environment var <var>.
 360 # with the <var> option. Useful: pshift $(pwd)
 361 pshift () {
 362     local n=1
 363     [ "$1" = "-n" ] && { n=$(( $2 + 1 )); shift 2; }
 364     eval "${1:-PATH}='$(pls |tail -n +$n |tr '\n' :)'"
 365 }
 366
 367 # Usage: ppop [-n <num>] [<var>]
 368 # Pop <num> entries off the end of PATH or environment variable <var>.
 369 ppop () {
 370     local n=1 i=0
 371     [ "$1" = "-n" ] && { n=$2; shift 2; }
 372     while [ $i -lt $n ]
 373     do eval "${1:-PATH}='\${${1:-PATH}%:*}'"
 374        i=$(( i + 1 ))
 375     done
 376 }
 377
 378 # Usage: prm <path> [<var>]
 379 # Remove <path> from PATH or environment variable <var>.
 380 prm () { eval "${2:-PATH}='$(pls $2 |grep -v "^$1\$" |tr '\n' :)'"; }
 381
 382 # Usage: punshift <path> [<var>]
 383 # Shift <path> onto the beginning of PATH or environment variable <var>.
 384 punshift () { eval "${2:-PATH}='$1:$(eval echo \$${2:-PATH})'"; }
 385
 386 # Usage: ppush <path> [<var>]
 387 ppush () { eval "${2:-PATH}='$(eval echo \$${2:-PATH})':$1"; }
 388
 389 # Usage: puniq [<path>]
 390 # Remove duplicate entries from a PATH style value while retaining
 391 # the original order. Use PATH if no <path> is given.
 392 #
 393 # Example:
 394 #   $ puniq /usr/bin:/usr/local/bin:/usr/bin
 395 #   /usr/bin:/usr/local/bin
 396 puniq () {
 397     echo "$1" | tr : '\n' | nl | sort -u -k 2,2 | sort -n |
 398     cut -f 2- | tr '\n' :
 399 }
 400
 401 # -------------------------------------------------------------------
 402 # USER SHELL ENVIRONMENT
 403 # -------------------------------------------------------------------
 404
 405 # source ~/.shenv now if it exists
 406 test -r ~/.shenv &&
 407     . ~/.shenv
 408
 409 # condense PATH entries
 410 PATH=$(puniq "$PATH")
 411 MANPATH=$(puniq "$MANPATH")
 412
 413 # Use the color prompt by default when interactive
 414 test -n "$PS1" &&
 415     prompt_color
 416
 417 # -------------------------------------------------------------------
 418 # MOTD / FORTUNE
 419 # -------------------------------------------------------------------
 420
 421 test -n "$INTERACTIVE" -a -n "$LOGIN" && {
 422     # Get current uname and uptime (if exists on this host)
 423     # Strip any leading whitespace from uname and uptime commands
 424     t_uname="$(test -n "`type -P uname`" && uname -npsr | sed -e 's/^\s+//')"
 425     t_uptime="$(test -n "`type -P uptime`" && uptime | sed -e 's/^\s+//')"
 426     if [ -n "$t_uname" ] || [ -n "$t_uptime" ]; then
 427         echo " --"
 428         test -n "$t_uname" && echo $t_uname
 429         test -n "$t_uptime" && echo $t_uptime
 430         echo " --"
 431     fi
 432     unset t_uname t_uptime
 433 }
 434
 435 # vim: ts=4 sts=4 shiftwidth=4 expandtab