The open trac tickets #4644 and #5507 discuss
problems with "sage -sh", specifically
#4644 - No new prompt when doing a ./sage -sh
#5507 - $ sage -sh -c "echo hi there" # does not work, but should
$ sage -sh -c -c "echo hi there" # works, but shouldn't
There is also a problem that "sage -sh" may pick up the user's
$PATH rather than the one defined in sage-env (which
is how I got into this issue).
The patch below fixes these three problems - but it may
not be what developers want. Specifically, it will set the
prompt to be "sage $" for all shells (with the exception of
csh which does not have a prompt environment variable and
so the prompt gets set to "%"). Note that with the patch
the prompt is NOT listing the current directory.
Do developers prefer that a sage-sub-shell prompt list
the current directory?
If so, I will have another think about this. If not, would
a kind person please check in the patch.
Mariah
--- sage-sage.old 2009-09-25 10:52:08.278703000 -0400
+++ sage-sage.new 2009-09-25 15:11:21.214214000 -0400
@@ -374,41 +374,37 @@
echo "with other copies of Sage!"
echo ""
SHELL_NAME=`basename $SHELL`
- if [ $# -eq 0 ]; then
- SHELL_OPTS=""
- else
- shift
- echo "Bypassing shell configuration files ..."
- echo
- # We must start a new shell with no .profile or .bashrc files
- # processed, so that we know our path is correct
- PS1="sage$ "
- export PS1
- case $SHELL_NAME in
- bash)
- SHELL_OPTS=" --norc"
- ;;
- csh)
- SHELL_OPTS=" -f"
- ;;
- ksh)
- SHELL_OPTS=" -p"
- ;;
- sh)
- SHELL_OPTS=" --norc"
- ;;
- tcsh)
- SHELL_OPTS=" -f"
- ;;
- zsh)
- SHELL_OPTS=" -f -d"
- ;;
- *)
- echo "Unknown shell: $SHELL!"
- echo "Exiting Sage."
- exit 1
- esac
- fi
+
+ echo "Bypassing shell configuration files ..."
+ echo
+ # We must start a new shell with no .profile or .bashrc files
+ # processed, so that we know our path is correct
+ PS1="sage$ "
+ export PS1
+ case $SHELL_NAME in
+ bash)
+ SHELL_OPTS=" --norc"
+ ;;
+ csh)
+ SHELL_OPTS=" -f"
+ ;;
+ ksh)
+ SHELL_OPTS=" -p"
+ ;;
+ sh)
+ SHELL_OPTS=" --norc"
+ ;;
+ tcsh)
+ SHELL_OPTS=" -f"
+ ;;
+ zsh)
+ SHELL_OPTS=" -f -d"
+ ;;
+ *)
+ echo "Unknown shell: $SHELL!"
+ echo "Exiting Sage."
+ exit 1
+ esac
$SHELL_NAME $SHELL_OPTS "$@"
echo Exited Sage subshell.
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