[13196] | 1 | # Global bashrc file |
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| 2 | # |
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[22516] | 3 | # $Id: bashrc,v 1.39 2006-07-17 23:14:07 rbasch Exp $ |
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[13196] | 4 | |
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| 5 | # This file is sourced by default user file ~/.bashrc |
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| 6 | |
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[22913] | 7 | initdir=/usr/lib/init |
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[13196] | 8 | |
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[25097] | 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 "$BASH_EXECUTION_STRING" in |
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[25364] | 12 | */usr/lib/openssh/sftp-server) |
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[25097] | 13 | SILENT=yes |
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| 14 | ;; |
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[25099] | 15 | scp\ *) |
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[25097] | 16 | SILENT=yes |
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| 17 | ;; |
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| 18 | esac |
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| 19 | |
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[13196] | 20 | # ******************* ENVIRONMENT SETUP ******************* |
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| 21 | |
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| 22 | # Set up standard system/user environment configuration (including setup of |
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| 23 | # environment variables, attachment of lockers, and setting of search path) |
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| 24 | |
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[25343] | 25 | if [ "${ENV_SET:+set}" != set ]; then |
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[13196] | 26 | |
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| 27 | export ENV_SET=t # Avoid unnecessary repeat |
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[22913] | 28 | export HOSTTYPE="`/bin/machtype`" |
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[13196] | 29 | |
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[24770] | 30 | # Ensure user's homedir is attached, for legacy things |
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| 31 | # that care about attachtab |
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[24792] | 32 | # Only attach if running as an Athena user, not e.g. using sudo. |
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[24793] | 33 | if [ "$DEBATHENA_HOME_TYPE" = afs ]; then |
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| 34 | /bin/attach -h -q "${ATHENA_USER:-$USER}" |
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[24792] | 35 | fi |
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[24770] | 36 | |
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[22975] | 37 | if [ -r "$HOME/.generation" ]; then |
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| 38 | export ATHENA_DOTFILE_GENERATION=`cat "$HOME/.generation"` |
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| 39 | else |
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| 40 | export ATHENA_DOTFILE_GENERATION=0 |
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| 41 | fi |
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| 42 | |
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[21164] | 43 | ulimit -S -c 0 # Don't allow coredumps |
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[13196] | 44 | export EDITOR=emacs # Set default editor |
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| 45 | export MM_CHARSET=iso-8859-1 |
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| 46 | |
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[23438] | 47 | export EMAIL="$USER@mit.edu" # Set default email address |
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| 48 | |
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[22913] | 49 | export MORE=-s |
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[13222] | 50 | |
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[22913] | 51 | export ATHENA_SYS=`/bin/machtype -S` |
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| 52 | export ATHENA_SYS_COMPAT=`/bin/machtype -C` |
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[13196] | 53 | |
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[13238] | 54 | if [ -z "$ATHENA_SYS" ]; then |
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[13196] | 55 | export ATHENA_SYS=@sys |
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[13238] | 56 | fi |
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[13196] | 57 | |
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[23132] | 58 | if [ "${PRINTER+set}" != set \ |
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[23513] | 59 | -a -e /var/run/athena-clusterinfo.csh ]; then |
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[23132] | 60 | PRINTER=`awk '/LPR/ { print $3 }' \ |
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[23513] | 61 | /var/run/athena-clusterinfo.csh` |
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[13196] | 62 | if [ -n "$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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[13222] | 69 | |
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[22439] | 70 | x=`(cd && /bin/pwd) 2>/dev/null` |
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[13196] | 71 | if [ -n "$x" ]; then |
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| 72 | export HOME=$x |
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[22439] | 73 | if [ "$x" = "`/bin/pwd`" ]; then |
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| 74 | cd "$HOME" |
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| 75 | fi |
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[13196] | 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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[13242] | 83 | # listed above. |
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[13196] | 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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[25098] | 86 | # option when you logged in). |
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[13196] | 87 | |
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[13222] | 88 | if [ "${NOCALLS+set}" != set -a -r ~/.bash_environment ]; then |
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[25097] | 89 | if [ "$SILENT" = "yes" ]; then |
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[25098] | 90 | . ~/.bash_environment &> /dev/null |
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| 91 | else |
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| 92 | . ~/.bash_environment |
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[25097] | 93 | fi |
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[13196] | 94 | fi |
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[13564] | 95 | |
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[23030] | 96 | # If the user has a bindir in $HOME, put it in front of the path. |
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[22913] | 97 | athena_home_bin=$( /usr/bin/athdir "$HOME" ) |
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[23030] | 98 | PATH=${athena_home_bin:+$athena_home_bin:}$PATH |
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[22913] | 99 | unset athena_home_bin |
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[13196] | 100 | |
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| 101 | fi |
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| 102 | |
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[22913] | 103 | |
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[13196] | 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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[13479] | 108 | if [ "${XSESSION+set}" = set ]; then |
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[25379] | 109 | if [ -x /usr/bin/gnome-session-quit ]; then |
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| 110 | logout () { gnome-session-quit --no-prompt; exit; } # logout for X |
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| 111 | else |
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[23182] | 112 | logout () { gnome-session-save --kill --silent; exit; } # logout for X |
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[25379] | 113 | fi |
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[13196] | 114 | fi |
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| 115 | |
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| 116 | # aliases dealing with adding locker programs |
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| 117 | |
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[23782] | 118 | setup_tty () {(export SUBJECT="$@"; $SHELL)} |
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| 119 | setup_X () {(export SUBJECT="$@"; xterm -title "$@" &)} |
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[13196] | 120 | |
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[23782] | 121 | if [ -n "$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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[13196] | 126 | |
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[23782] | 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 $initdir/env_setup.bash |
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| 133 | fi |
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| 134 | |
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| 135 | |
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[13222] | 136 | # All of the bash initializing commands above can be overridden by using |
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| 137 | # "unset" or "unalias" commands (or by changing things using "set" or |
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[13196] | 138 | # "alias" again) in your ~/.bashrc.mine file, which is sourced here. |
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| 139 | # ~/.bashsrc.mine is not sourced if the xlogin "Ignore your customizations" |
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| 140 | # option was selected to begin the session. |
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| 141 | |
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[13222] | 142 | if [ "${NOCALLS+set}" != set -a -r ~/.bashrc.mine ]; then |
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[25097] | 143 | if [ "$SILENT" = "yes" ]; then |
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[25098] | 144 | . ~/.bashrc.mine &> /dev/null |
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| 145 | else |
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| 146 | . ~/.bashrc.mine |
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[25097] | 147 | fi |
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[13196] | 148 | fi |
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[25590] | 149 | if [ "${skip_sanity_checks+set}" != set ]; then |
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| 150 | IFS=: |
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| 151 | bin=no |
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| 152 | usrbin=no |
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| 153 | for p in $PATH; do |
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| 154 | case $p in |
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| 155 | /bin) |
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| 156 | bin=yes |
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| 157 | ;; |
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| 158 | /usr/bin) |
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| 159 | usrbin=yes |
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| 160 | ;; |
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| 161 | esac |
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| 162 | done |
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| 163 | unset IFS |
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| 164 | if [ "$bin" != "yes" ] || [ "$usrbin" != "yes" ]; then |
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| 165 | text="You appear to have incorrectly modified your PATH variable in your dotfiles,\nand as such have deleted /bin and/or /usr/bin from your PATH, which\nwill likely cause this login session to fail. Please correct this problem." |
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| 166 | echo -e "$text" >&2 |
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| 167 | [ -n "$DISPLAY" ] && /usr/bin/zenity --warning --text="$text" |
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| 168 | fi |
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| 169 | if [ -n "$LD_ASSUME_KERNEL" ]; then |
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| 170 | unset LD_ASSUME_KERNEL |
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| 171 | echo "In your shell customizations, you set LD_ASSUME_KERNEL. This is a bad idea." >&2 |
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| 172 | echo "We have unset it for you." >&2 |
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| 173 | echo "If you really did want that, set skip_sanity_checks=y in your .bashrc.mine." >&2 |
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| 174 | [ -n "$DISPLAY" ] && /usr/bin/zenity --warning --text="You tried to set LD_ASSUME_KERNEL in your shell customizations. Don't do that.\nWe have unset it for you.\nSet skip_sanity_checks=y in your ~/.bashrc.mine if you really want that." |
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| 175 | fi |
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| 176 | fi |
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| 177 | |
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| 178 | |
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