1 | # Global bashrc file |
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2 | # |
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3 | # $Id: bashrc,v 1.39 2006-07-17 23:14:07 rbasch Exp $ |
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4 | |
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5 | # This file is sourced by default user file ~/.bashrc |
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6 | |
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7 | initdir=/usr/lib/init |
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8 | |
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9 | # ******************* ENVIRONMENT SETUP ******************* |
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10 | |
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11 | |
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12 | |
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13 | # Set up standard system/user environment configuration (including setup of |
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14 | # environment variables, attachment of lockers, and setting of search path) |
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15 | |
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16 | # If we see ENV_SET set to empty, we could be a tcsh user who has |
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17 | # decided to run bash, or we could be a bash user suffering from the |
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18 | # misfeature that the standard xsession script runs the tcsh dotfiles |
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19 | # for all users. Running the environment setup for the former |
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20 | # category of user would be unfriendly (it resets the homedir and |
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21 | # changes the path), so for now, only run environment setup for bash |
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22 | # users. If the xsession problem is ever fixed, change this |
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23 | # conditional to check for '"${ENV_SET+set}" != set' and eliminate the |
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24 | # shell check. |
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25 | if [ "${ENV_SET:+set}" != set -a "${SHELL##*/}" = bash ]; then |
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26 | |
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27 | export ENV_SET=t # Avoid unnecessary repeat |
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28 | export HOSTTYPE="`/bin/machtype`" |
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29 | |
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30 | if [ -r "$HOME/.generation" ]; then |
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31 | export ATHENA_DOTFILE_GENERATION=`cat "$HOME/.generation"` |
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32 | else |
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33 | export ATHENA_DOTFILE_GENERATION=0 |
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34 | fi |
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35 | |
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36 | ulimit -S -c 0 # Don't allow coredumps |
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37 | export EDITOR=emacs # Set default editor |
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38 | export MM_CHARSET=iso-8859-1 |
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39 | |
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40 | export EMAIL="$USER@mit.edu" # Set default email address |
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41 | |
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42 | export MORE=-s |
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43 | |
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44 | # Set double-sided printing for sufficiently recent users. |
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45 | if [ 1 -le "$ATHENA_DOTFILE_GENERATION" ]; then |
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46 | export LPROPT=-Zduplex |
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47 | fi |
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48 | |
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49 | export ATHENA_SYS=`/bin/machtype -S` |
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50 | export ATHENA_SYS_COMPAT=`/bin/machtype -C` |
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51 | |
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52 | if [ -z "$ATHENA_SYS" ]; then |
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53 | export ATHENA_SYS=@sys |
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54 | fi |
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55 | |
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56 | if [ "${PRINTER+set}" != set \ |
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57 | -a -e /var/run/athena-clusterinfo.csh ]; then |
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58 | PRINTER=`awk '/LPR/ { print $3 }' \ |
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59 | /var/run/athena-clusterinfo.csh` |
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60 | if [ -n "$PRINTER" ]; then export PRINTER; fi |
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61 | fi |
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62 | |
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63 | # Reset the HOME variable to correspond to the actual location |
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64 | # of the user's home directory. This will avoid having long |
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65 | # pathnames being printed when /mit/<user> is a symlink to a |
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66 | # path within AFS. |
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67 | |
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68 | x=`(cd && /bin/pwd) 2>/dev/null` |
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69 | if [ -n "$x" ]; then |
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70 | export HOME=$x |
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71 | if [ "$x" = "`/bin/pwd`" ]; then |
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72 | cd "$HOME" |
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73 | fi |
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74 | fi |
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75 | unset x |
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76 | |
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77 | # Run user environment customizations identified in your |
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78 | # ~/.bash_environment file. This is the place to include your |
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79 | # own environment variables, attach commands, and other system |
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80 | # wide setup commands. You can also cancel default behaviors |
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81 | # listed above. |
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82 | # ~/.bash_environment is not sourced if NOCALLS is set (i.e., |
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83 | # if you selected the xlogin "Ignore your customizations" |
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84 | # option when you logged in). |
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85 | |
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86 | if [ "${NOCALLS+set}" != set -a -r ~/.bash_environment ]; then |
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87 | . ~/.bash_environment |
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88 | fi |
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89 | |
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90 | # If the user has a bindir in $HOME, put it in front of the path. |
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91 | athena_home_bin=$( /usr/bin/athdir "$HOME" ) |
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92 | PATH=${athena_home_bin:+$athena_home_bin:}$PATH |
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93 | unset athena_home_bin |
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94 | |
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95 | fi |
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96 | |
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97 | |
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98 | # ******************* BASH SETUP ******************* |
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99 | |
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100 | # Set up standard bash shell initializations |
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101 | |
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102 | if [ "${XSESSION+set}" = set ]; then |
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103 | logout () { gnome-session-save --kill --silent; exit; } # logout for X |
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104 | fi |
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105 | |
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106 | # aliases dealing with adding locker programs |
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107 | |
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108 | setup_tty () {(export SUBJECT="$@"; $SHELL)} |
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109 | setup_X () {(export SUBJECT="$@"; xterm -title "$@" &)} |
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110 | |
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111 | if [ -n "$XSESSION" ]; then |
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112 | alias setup=setup_X |
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113 | else |
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114 | alias setup=setup_tty |
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115 | fi |
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116 | |
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117 | remove () { export SUBJECT="$@"; |
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118 | source $initdir/env_remove.bash; |
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119 | unset SUBJECT; } |
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120 | |
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121 | if [ -n "$SUBJECT" -a -r $initdir/env_setup.bash ]; then |
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122 | source $initdir/env_setup.bash |
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123 | fi |
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124 | |
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125 | |
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126 | # All of the bash initializing commands above can be overridden by using |
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127 | # "unset" or "unalias" commands (or by changing things using "set" or |
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128 | # "alias" again) in your ~/.bashrc.mine file, which is sourced here. |
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129 | # ~/.bashsrc.mine is not sourced if the xlogin "Ignore your customizations" |
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130 | # option was selected to begin the session. |
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131 | |
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132 | if [ "${NOCALLS+set}" != set -a -r ~/.bashrc.mine ]; then |
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133 | . ~/.bashrc.mine |
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134 | fi |
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