On Mon, Jan 20, 2003 at 11:07:16AM +0530, Rahul Kumar wrote:
> I mean only single user, with many terminals open. i didnt want to keep
> executing bash_profile in each window. some settings in my bash_profile
> are appended, so re-executing it creates a problem.
>
> Anyway, it seems from some replies that its not possible. Thanks.
There are workarounds, of course.
1. export PROMPT_COMMAND='source $HOME/.bashrc' so that bash will re-read
the file before issuing a prompt (will get pretty slow if you have a
largeish .bashrc).
2. To overcome the problem of settings getting appended, you need to have
related checks in your .bashrc. One way of making sure that a block will
get executed only while logging in for the first time is to set a special
variable in /etc/profile and unset it at the end of your own .bashrc.
In /etc/profile:
if [ $SHLVL -eq 1 ]; then # Or use $PPID here. Not sure which one.
EXECUTEONCE=true
fi
In .bashrc:
if [ -n "$EXECUTEONCE ]; then
# Stuff that should be executed only at startup
fi
... # Rest of the stuff.
# This should be the last line of .bashrc
unset EXECUTEONCE
3. I use this block to get rid of duplicate PATH entries. You can adjust it for
MANPATH, CLASSPATH etc.
PATH=$(echo $PATH | awk -F: '
{
for (i = 1; i <= NF; i++)
arr[$i];
}
END {
for (i in arr)
printf "%s:" , i;
printf "\n";
} ')
export PATH
Binand
PS: Standard Disclaimers apply.
--
Russian Roulette with Unix:
while :; do kill $RANDOM &> /dev/null && break || sleep 1; done
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