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