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 | # Determine if we're in an sftp or scp session and if so, be quiet |
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10 | SILENT=no |
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11 | case "$BASH_EXECUTION_STRING" in |
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12 | */usr/lib/openssh/sftp-server) |
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13 | SILENT=yes |
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14 | ;; |
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15 | scp\ *) |
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16 | SILENT=yes |
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17 | ;; |
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18 | esac |
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19 | |
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20 | # ******************* ENVIRONMENT SETUP ******************* |
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21 | |
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22 | # Set up standard system/user environment configuration (including setup of |
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23 | # environment variables, attachment of lockers, and setting of search path) |
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24 | |
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25 | if [ "${ENV_SET:+set}" != set ]; 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 | # Ensure user's homedir is attached, for legacy things |
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31 | # that care about attachtab |
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32 | # Only attach if running as an Athena user, not e.g. using sudo. |
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33 | if [ "$DEBATHENA_HOME_TYPE" = afs ]; then |
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34 | /bin/attach -h -q "${ATHENA_USER:-$USER}" |
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35 | fi |
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36 | |
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37 | if [ -r "$HOME/.generation" ]; then |
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38 | export ATHENA_DOTFILE_GENERATION=`cat "$HOME/.generation"` |
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39 | else |
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40 | export ATHENA_DOTFILE_GENERATION=0 |
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41 | fi |
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42 | |
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43 | ulimit -S -c 0 # Don't allow coredumps |
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44 | export EDITOR=emacs # Set default editor |
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45 | export MM_CHARSET=iso-8859-1 |
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46 | |
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47 | export EMAIL="$USER@mit.edu" # Set default email address |
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48 | |
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49 | export MORE=-s |
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50 | |
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51 | export ATHENA_SYS=`/bin/machtype -S` |
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52 | export ATHENA_SYS_COMPAT=`/bin/machtype -C` |
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53 | |
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54 | if [ -z "$ATHENA_SYS" ]; then |
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55 | export ATHENA_SYS=@sys |
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56 | fi |
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57 | |
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58 | if [ "${PRINTER+set}" != set \ |
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59 | -a -e /var/run/athena-clusterinfo.csh ]; then |
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60 | PRINTER=`awk '/LPR/ { print $3 }' \ |
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61 | /var/run/athena-clusterinfo.csh` |
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62 | if [ -n "$PRINTER" ]; then export PRINTER; fi |
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63 | fi |
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64 | |
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65 | # Reset the HOME variable to correspond to the actual location |
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66 | # of the user's home directory. This will avoid having long |
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67 | # pathnames being printed when /mit/<user> is a symlink to a |
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68 | # path within AFS. |
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69 | |
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70 | x=`(cd && /bin/pwd) 2>/dev/null` |
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71 | if [ -n "$x" ]; then |
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72 | export HOME=$x |
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73 | if [ "$x" = "`/bin/pwd`" ]; then |
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74 | cd "$HOME" |
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75 | fi |
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76 | fi |
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77 | unset x |
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78 | |
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79 | # Run user environment customizations identified in your |
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80 | # ~/.bash_environment file. This is the place to include your |
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81 | # own environment variables, attach commands, and other system |
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82 | # wide setup commands. You can also cancel default behaviors |
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83 | # listed above. |
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84 | # ~/.bash_environment is not sourced if NOCALLS is set (i.e., |
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85 | # if you selected the xlogin "Ignore your customizations" |
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86 | # option when you logged in). |
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87 | |
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88 | if [ "${NOCALLS+set}" != set -a -r ~/.bash_environment ]; then |
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89 | if [ "$SILENT" = "yes" ]; then |
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90 | . ~/.bash_environment &> /dev/null |
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91 | else |
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92 | . ~/.bash_environment |
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93 | fi |
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94 | fi |
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95 | |
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96 | # If the user has a bindir in $HOME, put it in front of the path. |
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97 | athena_home_bin=$( /usr/bin/athdir "$HOME" ) |
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98 | PATH=${athena_home_bin:+$athena_home_bin:}$PATH |
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99 | unset athena_home_bin |
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100 | |
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101 | fi |
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102 | |
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103 | |
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104 | # ******************* BASH SETUP ******************* |
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105 | |
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106 | # Set up standard bash shell initializations |
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107 | |
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108 | if [ "${XSESSION+set}" = set ]; then |
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109 | if [ -x /usr/bin/gnome-session-quit ]; then |
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110 | logout () { /usr/lib/init/check-for-reboot; gnome-session-quit --no-prompt; exit; } # logout for X |
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111 | else |
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112 | logout () { /usr/lib/init/check-for-reboot; gnome-session-save --kill --silent; exit; } # logout for X |
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113 | fi |
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114 | fi |
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115 | |
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116 | # aliases dealing with adding locker programs |
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117 | |
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118 | setup_tty () {(export SUBJECT="$@"; $SHELL)} |
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119 | setup_X () {(export SUBJECT="$@"; xterm -title "$@" &)} |
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120 | |
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121 | if [ -n "$XSESSION" ]; then |
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122 | alias setup=setup_X |
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123 | else |
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124 | alias setup=setup_tty |
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125 | fi |
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126 | |
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127 | remove () { export SUBJECT="$@"; |
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128 | source $initdir/env_remove.bash; |
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129 | unset SUBJECT; } |
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130 | |
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131 | if [ -n "$SUBJECT" -a -r $initdir/env_setup.bash ]; then |
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132 | source $initdir/env_setup.bash |
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133 | fi |
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134 | |
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135 | |
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136 | # All of the bash initializing commands above can be overridden by using |
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137 | # "unset" or "unalias" commands (or by changing things using "set" or |
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138 | # "alias" again) in your ~/.bashrc.mine file, which is sourced here. |
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139 | # ~/.bashsrc.mine is not sourced if the xlogin "Ignore your customizations" |
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140 | # option was selected to begin the session. |
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141 | |
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142 | if [ "${NOCALLS+set}" != set -a -r ~/.bashrc.mine ]; then |
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143 | if [ "$SILENT" = "yes" ]; then |
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144 | . ~/.bashrc.mine &> /dev/null |
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145 | else |
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146 | . ~/.bashrc.mine |
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147 | fi |
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148 | fi |
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149 | if [ "${skip_sanity_checks+set}" != set ]; then |
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150 | missing=0 |
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151 | echo $PATH | /usr/bin/tr ':' '\n' | /bin/grep -Fqx /bin |
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152 | [ $? -eq 0 ] || missing=1 |
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153 | echo $PATH | /usr/bin/tr ':' '\n' | /bin/grep -Fqx /usr/bin |
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154 | [ $? -eq 0 ] || missing=1 |
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155 | if [ $missing -eq 1 ]; then |
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156 | text="You appear to have incorrectly modified your PATH variable in your dotfiles,\nand as such have deleted /bin and/or /usr/bin from your PATH, which\nwill likely cause this login session to fail. Please correct this problem.\nThis warning can be disabled with 'skip_sanity_checks=t' in ~/.bashrc.mine." |
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157 | echo -e "$text" >&2 |
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158 | [ -n "$DISPLAY" ] && /usr/bin/zenity --warning --text="$text" |
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159 | fi |
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160 | if [ -n "${LD_ASSUME_KERNEL+x}" ]; then |
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161 | unset LD_ASSUME_KERNEL |
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162 | text="In your dotfiles, you set LD_ASSUME_KERNEL. This generally causes undesirable behavior.\nIt has been unset for you.\nIf you really wanted it set, you can add 'skip_sanity_checks=t' to your ~/.bashrc.mine." |
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163 | echo -e "$text" >&2 |
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164 | [ -n "$DISPLAY" ] && /usr/bin/zenity --warning --text="$text" |
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165 | fi |
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166 | fi |
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167 | |
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168 | |
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