.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 "$PS1" ] && return
   8
   9 # the basics
  10 PATH="/usr/local/bin:/bin:/usr/bin:/usr/sbin:/usr/local/sbin:/sbin:$PATH"
  11 : ${HOME=~}
  12 : ${LOGNAME=$(id -un)}
  13 : ${UNAME=$(uname)}
  14 # strip OS type and version under Cygwin (e.g. CYGWIN_NT-5.1 => Cygwin)
  15 UNAME=${UNAME/CYGWIN_*/Cygwin}
  16
  17 # complete hostnames from this file
  18 HOSTFILE=~/.ssh/known_hosts
  19
  20 # readline config
  21 INPUTRC=~/.inputrc
  22
  23 # if current $TERM isn't valid, fall-back to TERM=xterm-color or TERM=xterm
  24 case $(tput colors 2>&1) in
  25     tput* )
  26         export TERM=xterm-color
  27         case $(tput colors 2>&1) in
  28             tput* )
  29                 export TERM=xterm
  30                 ;;
  31         esac
  32         ;;
  33 esac
  34
  35 if [ "$UNAME" = "Darwin" ]; then
  36     # Fink init, for OSX
  37     test -r /sw/bin/init.sh &&
  38         source /sw/bin/init.sh
  39 fi
  40
  41 # ----------------------------------------------------------------------
  42 #  SHELL OPTIONS
  43 # ----------------------------------------------------------------------
  44
  45 # bring in system bashrc
  46 test -r /etc/bashrc &&
  47     . /etc/bashrc
  48
  49 # notify of bg job completion immediately
  50 set -o notify
  51
  52 # shell opts. see bash(1) for details
  53 shopt -s cdspell >/dev/null 2>&1
  54 shopt -s extglob >/dev/null 2>&1
  55 shopt -s histappend >/dev/null 2>&1
  56 shopt -s hostcomplete >/dev/null 2>&1
  57 shopt -s interactive_comments >/dev/null 2>&1
  58 shopt -u mailwarn >/dev/null 2>&1
  59 shopt -s no_empty_cmd_completion >/dev/null 2>&1
  60
  61 # don't check for new mail
  62 unset MAILCHECK
  63
  64 # disable core dumps
  65 ulimit -S -c 0
  66
  67 # default umask
  68 umask 0022
  69
  70 # ----------------------------------------------------------------------
  71 # PATH
  72 # ----------------------------------------------------------------------
  73
  74 # we want the various sbin's on the path along with /usr/local/bin
  75 PATH="$PATH:/usr/local/sbin:/usr/sbin:/sbin"
  76 PATH="/usr/local/bin:$PATH"
  77
  78 # put /opt/csw/* on PATH if exists (OpenCSW Solaris packages)
  79 test -d "/opt/csw" &&
  80     PATH="/opt/csw/sbin:/opt/csw/bin:$PATH"
  81
  82 # put ~/bin on PATH if exists
  83 test -d "$HOME/bin" &&
  84     PATH="$HOME/bin:$PATH"
  85
  86 # put ~/sbin on PATH if exists
  87 test -d "$HOME/sbin" &&
  88     PATH="$HOME/sbin:$PATH"
  89
  90 # ----------------------------------------------------------------------
  91 # ENVIRONMENT CONFIGURATION
  92 # ----------------------------------------------------------------------
  93
  94 # detect interactive shell
  95 case "$-" in
  96     *i*) INTERACTIVE=yes ;;
  97     *)   unset INTERACTIVE ;;
  98 esac
  99
 100 # detect login shell
 101 case "$0" in
 102    -*) LOGIN=yes ;;
 103    *)  unset LOGIN ;;
 104 esac
 105
 106 # setup locale. Try to enable en_US locale w/ utf-8 encodings
 107 # (if not already configured), but do graceful fall-back.
 108 lclist=$(locale -a | grep en_US)
 109 if test -n "$(echo $lclist | grep UTF-8)"; then
 110     : ${LANG:="en_US.UTF-8"}
 111     : ${LANGUAGE:="en"}
 112     : ${LC_CTYPE:="en_US.UTF-8"}
 113     : ${LC_ALL:="en_US.UTF-8"}
 114 elif test -n "$(echo $lclist | grep utf8)"; then
 115     : ${LANG:="en_US.utf8"}
 116     : ${LANGUAGE:="en"}
 117     : ${LC_CTYPE:="en_US.utf8"}
 118     : ${LC_ALL:="en_US.utf8"}
 119 elif test -n "$(echo $lclist | grep ISO8859-1)"; then
 120     : ${LANG:="en_US.ISO8859-1"}
 121     : ${LANGUAGE:="en"}
 122     : ${LC_CTYPE:="en_US.ISO8859-1"}
 123     : ${LC_ALL:="en_US.ISO8859-1"}
 124 else
 125     : ${LANG:="en_US"}
 126     : ${LANGUAGE:="en"}
 127     : ${LC_CTYPE:="en_US"}
 128     : ${LC_ALL:="en_US"}
 129 fi
 130 export LANG LANGUAGE LC_CTYPE LC_ALL
 131 unset lclist
 132
 133 # ignore backups, CVS directories, python bytecode, vim swap files
 134 FIGNORE="~:CVS:#:.pyc:.swp:.swa:apache-solr-*"
 135
 136 # history stuff
 137 HISTCONTROL=ignoreboth
 138 HISTFILESIZE=10000
 139 HISTSIZE=10000
 140
 141 # ----------------------------------------------------------------------
 142 # PAGER / EDITOR
 143 # ----------------------------------------------------------------------
 144
 145 # See what we have to work with ...
 146 HAVE_VIM=$(command -v vim)
 147
 148 # EDITOR
 149 test -n "$HAVE_VIM" &&
 150     EDITOR=vim ||
 151     EDITOR=vi
 152 export EDITOR
 153
 154 # PAGER
 155 if test -n "$(command -v less)" ; then
 156     PAGER="less"
 157     MANPAGER="less"
 158     LESS="-FiRX"
 159     export LESS
 160 else
 161     PAGER=more
 162     MANPAGER="$PAGER"
 163 fi
 164 export PAGER MANPAGER
 165
 166 # Ack
 167 ACK_PAGER="$PAGER"
 168 ACK_PAGER_COLOR="$PAGER"
 169
 170 # ----------------------------------------------------------------------
 171 # PROMPT
 172 # ----------------------------------------------------------------------
 173
 174 # http://en.wikipedia.org/wiki/ANSI_escape_code#graphics
 175
 176 if [ "$UID" = 0 ]; then
 177     # root
 178     PS_C1="\[\033[1;31m\]"  # red
 179     PS_C2="\[\033[0;37m\]"  # grey
 180     PS_P="#"
 181 else
 182     case "$UNAME" in
 183         Cygwin)
 184             PS_C1="\[\033[0;32m\]"  # green
 185             PS_C2="\[\033[0;37m\]"  # grey
 186             ;;
 187         Darwin)
 188             PS_C1="\[\033[1;97m\]"  # white
 189             PS_C2="\[\033[0;37m\]"  # grey
 190             ;;
 191         SunOS | AIX)
 192             PS_C1="\[\033[1;96m\]"  # cyan
 193             PS_C2="\[\033[0;36m\]"  # cyan
 194             ;;
 195         *)
 196             PS_C1="\[\033[1;93m\]"  # yellow
 197             PS_C2="\[\033[0;33m\]"  # brown
 198     esac
 199     PS_P="\$"
 200 fi
 201
 202 prompt_simple() {
 203     unset PROMPT_COMMAND
 204     PS1="[\u@\h:\w]\$ "
 205     PS2="> "
 206 }
 207
 208 prompt_compact() {
 209     unset PROMPT_COMMAND
 210     PS1="${PS_C1}${PS_P}\[\033[0m\] "
 211     PS2="> "
 212 }
 213
 214 prompt_color() {
 215     PS1="\[\033[0;90m\][${PS_C1}\u@\h\[\033[0m\]\[\033[0;90m\]:${PS_C2}\w\[\033[0;90m\]]${PS_P}\[\033[0m\] "
 216     PS2="> "
 217 }
 218
 219 # ----------------------------------------------------------------------
 220 # MACOS X / DARWIN SPECIFIC
 221 # ----------------------------------------------------------------------
 222
 223 if [ "$UNAME" = Darwin ]; then
 224     # put ports on the paths if /opt/local exists
 225     test -x /opt/local -a ! -L /opt/local && {
 226         PORTS=/opt/local
 227
 228         # setup the PATH and MANPATH
 229         PATH="$PORTS/bin:$PORTS/sbin:$PATH"
 230         MANPATH="$PORTS/share/man:$MANPATH"
 231
 232         # nice little port alias
 233         alias port="sudo nice -n +18 $PORTS/bin/port"
 234     }
 235 fi
 236
 237 # ----------------------------------------------------------------------
 238 # ALIASES / FUNCTIONS
 239 # ----------------------------------------------------------------------
 240
 241 # alias 'vi' to 'vim' if Vim is installed
 242 vim="$(type -P vim)"
 243 test -n "$vim" && {
 244     alias vi='vim'
 245 }
 246 unset vim
 247
 248 # disk usage with human sizes and minimal depth
 249 alias du1='du -h --max-depth=1'
 250 alias fn='find . -name'
 251 alias hi='history | tail -20'
 252
 253 # For Solaris, use GNU versions of grep and sed
 254 if [ "$UNAME" = SunOS ]; then
 255     test -x /usr/gnu/bin/grep && alias grep="/usr/gnu/bin/grep"
 256     test -x /usr/gnu/bin/sed  && alias sed="/usr/gnu/bin/sed"
 257 fi
 258
 259 # Alias csh-style "rebash" to bash equivalent
 260 alias rehash="hash -r"
 261
 262 # ----------------------------------------------------------------------
 263 # BASH COMPLETION
 264 # ----------------------------------------------------------------------
 265
 266 test -z "$BASH_COMPLETION" && {
 267     bash=${BASH_VERSION%.*}; bmajor=${bash%.*}; bminor=${bash#*.}
 268     test -n "$PS1" && test $bmajor -gt 1 && {
 269         # search for a bash_completion file to source
 270         for f in /usr/local/etc/bash_completion \
 271                  /usr/pkg/etc/bash_completion \
 272                  /opt/local/etc/bash_completion \
 273                  /etc/bash_completion
 274         do
 275             test -f $f && {
 276                 . $f
 277                 break
 278             }
 279         done
 280     }
 281     unset bash bmajor bminor
 282 }
 283
 284 # override and disable tilde expansion
 285 _expand() {
 286     return 0
 287 }
 288
 289 # ----------------------------------------------------------------------
 290 # LS AND DIRCOLORS
 291 # ----------------------------------------------------------------------
 292
 293 # we always pass these to ls(1)
 294 unset LS_COMMON
 295 ## OS-specific options
 296 #case "$UNAME" in
 297 #    "Linux" ) LS_COMMON="--color=auto";;
 298 #    "Cygwin" ) LS_COMMON="--color=auto";;
 299 #    "Darwin" ) LS_COMMON="--color=auto";;
 300 #esac
 301
 302 # if the dircolors utility is available, set that up for ls
 303 dircolors="$(type -P gdircolors dircolors | head -1)"
 304 test -n "$dircolors" && {
 305     COLORS=/etc/DIR_COLORS
 306     test -e "/etc/DIR_COLORS.$TERM"   && COLORS="/etc/DIR_COLORS.$TERM"
 307     test -e "$HOME/.dircolors"        && COLORS="$HOME/.dircolors"
 308     test ! -e "$COLORS"               && COLORS=
 309     # AIX (vx-track) has dircolors(1) but ls(1) doesn't support --color arg
 310     test "$UNAME" = "AIX"             && COLORS=
 311     eval `$dircolors --sh $COLORS`
 312 }
 313 unset dircolors
 314
 315 # enable color ls output if available
 316 test -n "$COLORS" &&
 317     LS_COMMON="--color=auto $LS_COMMON"
 318
 319 # setup the main ls alias if we've established common args
 320 test -n "$LS_COMMON" &&
 321     alias ls="command ls $LS_COMMON"
 322
 323 # these use the ls aliases above
 324 alias ll="ls -l"
 325 alias l.="ls -d .*"
 326 alias ll.="ls -ld .*"
 327 alias lla="ls -la"
 328
 329 # setup color grep output if available
 330 if [ -n "$COLORS" ]; then
 331     case "$UNAME" in
 332         "SunOS")
 333             # For Solaris, use the GNU version of grep for color support
 334             test -x /usr/gnu/bin/grep && alias grep="/usr/gnu/bin/grep --color=always"
 335             ;;
 336         *)
 337             alias grep="command grep --color=always"
 338             ;;
 339     esac
 340     # older versions of grep only support a singular highlight color
 341     export GREP_COLOR='1;37;42'
 342     # newer versions of grep have more flexible color configuration
 343     export GREP_COLORS='fn=36:ln=1;33:ms=1;37;42'
 344 fi
 345
 346 # --------------------------------------------------------------------
 347 # MISC COMMANDS
 348 # --------------------------------------------------------------------
 349
 350 # push SSH public key to another box
 351 push_ssh_cert() {
 352     local _host
 353     test -f ~/.ssh/id_rsa.pub || ssh-keygen -t rsa -b 4096
 354     for _host in "$@";
 355     do
 356         echo $_host
 357         ssh $_host 'cat >> ~/.ssh/authorized_keys' < ~/.ssh/id_rsa.pub
 358     done
 359 }
 360
 361 # --------------------------------------------------------------------
 362 # PATH MANIPULATION FUNCTIONS
 363 # --------------------------------------------------------------------
 364
 365 # Usage: pls [<var>]
 366 # List path entries of PATH or environment variable <var>.
 367 pls () { eval echo \$${1:-PATH} |tr : '\n'; }
 368
 369 # Usage: pshift [-n <num>] [<var>]
 370 # Shift <num> entries off the front of PATH or environment var <var>.
 371 # with the <var> option. Useful: pshift $(pwd)
 372 pshift () {
 373     local n=1
 374     [ "$1" = "-n" ] && { n=$(( $2 + 1 )); shift 2; }
 375     eval "${1:-PATH}='$(pls |tail -n +$n |tr '\n' :)'"
 376 }
 377
 378 # Usage: ppop [-n <num>] [<var>]
 379 # Pop <num> entries off the end of PATH or environment variable <var>.
 380 ppop () {
 381     local n=1 i=0
 382     [ "$1" = "-n" ] && { n=$2; shift 2; }
 383     while [ $i -lt $n ]
 384     do eval "${1:-PATH}='\${${1:-PATH}%:*}'"
 385        i=$(( i + 1 ))
 386     done
 387 }
 388
 389 # Usage: prm <path> [<var>]
 390 # Remove <path> from PATH or environment variable <var>.
 391 prm () { eval "${2:-PATH}='$(pls $2 |grep -v "^$1\$" |tr '\n' :)'"; }
 392
 393 # Usage: punshift <path> [<var>]
 394 # Shift <path> onto the beginning of PATH or environment variable <var>.
 395 punshift () { eval "${2:-PATH}='$1:$(eval echo \$${2:-PATH})'"; }
 396
 397 # Usage: ppush <path> [<var>]
 398 ppush () { eval "${2:-PATH}='$(eval echo \$${2:-PATH})':$1"; }
 399
 400 # Usage: puniq [<path>]
 401 # Remove duplicate entries from a PATH style value while retaining
 402 # the original order. Use PATH if no <path> is given.
 403 #
 404 # Example:
 405 #   $ puniq /usr/bin:/usr/local/bin:/usr/bin
 406 #   /usr/bin:/usr/local/bin
 407 puniq () {
 408     echo "$1" | tr : '\n' | nl | sort -u -k 2,2 | sort -n |
 409     cut -f 2- | tr '\n' :
 410 }
 411
 412 # -------------------------------------------------------------------
 413 # USER SHELL ENVIRONMENT
 414 # -------------------------------------------------------------------
 415
 416 # source ~/.shenv now if it exists
 417 test -r ~/.shenv &&
 418     . ~/.shenv
 419
 420 # condense PATH entries
 421 PATH=$(puniq "$PATH")
 422 MANPATH=$(puniq "$MANPATH")
 423
 424 # Use the color prompt by default when interactive
 425 test -n "$PS1" &&
 426     prompt_color
 427
 428 # -------------------------------------------------------------------
 429 # MOTD / FORTUNE
 430 # -------------------------------------------------------------------
 431
 432 test -n "$INTERACTIVE" -a -n "$LOGIN" && {
 433     # Get current uname and uptime (if exists on this host)
 434     # Strip any leading whitespace from uname and uptime commands
 435     t_uname="$(test -n "`type -P uname`" && uname -npsr | sed -e 's/^\s+//')"
 436     t_uptime="$(test -n "`type -P uptime`" && uptime | sed -e 's/^\s+//')"
 437     if [ -n "$t_uname" ] || [ -n "$t_uptime" ]; then
 438         echo " --"
 439         test -n "$t_uname" && echo $t_uname
 440         test -n "$t_uptime" && echo $t_uptime
 441         echo " --"
 442     fi
 443     unset t_uname t_uptime
 444 }
 445
 446 # vim: ts=4 sts=4 shiftwidth=4 expandtab