sagemath-common 8.1-7ubuntu1 / usr / bin / sage

#!/usr/bin/env bash

# workaround #892622; unfortunately we can't simply run setarch -R when running Singular
# because src/sage/libs/singular/singular.pyx loads libsingular.so into the current process
if [ "$(arch)" = "mips64" -a -z "$SAGE_DEB_MIPS64_WORKAROUND" ]; then
    SAGE_DEB_MIPS64_WORKAROUND=1 exec setarch mips64 -R "$0" "$@"
fi

help_banner() {
    sage_banner | grep -v 'Type'
    echo
}

usage() {
    help_banner
    ####  1.......................26..................................................78
    ####  |.....................--.|...................................................|
    echo "Optional arguments:"
    echo "  file.[sage|py|spyx] -- run given .sage, .py or .spyx file"
    echo "  -advanced           -- list all command line options"
    echo "  -c <cmd>            -- Evaluates cmd as sage code"
    echo "  -gap [...]          -- run Sage's Gap with given arguments"
    echo "  -gp [...]           -- run Sage's PARI/GP calculator with given arguments"
    echo "  -h, -?              -- print this help message"
    echo "  -inotebook [...]    -- start the *insecure* Sage notebook (deprecated)"
    echo "  -maxima [...]       -- run Sage's Maxima with given arguments"
    echo "  -mwrank [...]       -- run Sage's mwrank with given arguments"
    echo "  --notebook=[...]    -- start the Sage notebook (valid options are"
    echo "                         'default', 'sagenb', 'jupyter', and 'export')"
    echo "                         Current default is 'export' from sagenb to jupyter"
    echo "  -n, --notebook      -- shortcut for --notebook=default"
    echo "  -python [...]       -- run the Python 2 interpreter"
    echo "  -python3 [...]      -- run the Python 3 interpreter"
    echo "  -R [...]            -- run Sage's R with given arguments"
    echo "  -singular [...]     -- run Sage's singular with given arguments"
    echo "  -sqlite3 [...]      -- run Sage's sqlite3 with given arguments"
    echo "  -root               -- print the Sage root directory"
    echo "  --nodotsage         -- run Sage without using the user's .sage directory:"
    echo "                         create and use a temporary .sage directory instead"
    echo "  -t [options] <--all|files|dir>"
    echo "                      -- test examples in .py, .pyx, .sage, .tex or .rst files"
    echo "                         selected options:"
    echo "                           --long - include lines with the phrase 'long time'"
    echo "                           --verbose - print debugging output during the test"
    echo "                           --optional - controls which optional tests are run"
    echo "                           --sagenb - test all sagenb files"
    echo "                           --help - show all testing options"
    echo "  -v, -version        -- display Sage version information"
    exit 0
}

usage_advanced() {
    help_banner
    ####  1.......................26..................................................78
    ####  |.....................--.|...................................................|
    echo "Running Sage:"
    echo "  file.[sage|py|spyx] -- run given .sage, .py or .spyx file"
    echo "  -advanced           -- print this advanced help message"
    echo "  -c <cmd>            -- Evaluates cmd as sage code"
    echo "  -h, -?              -- print short help message"
    echo "  -min [...]          -- do not populate global namespace (must be first"
    echo "                         option)"
    echo "  -preparse <file.sage> -- preparse file.sage and produce corresponding file.sage.py"
    echo "  -q                  -- quiet; start with no banner"
    echo "  -root               -- print the Sage root directory"
    echo "  -gthread, -qthread, -q4thread, -wthread, -pylab"
    echo "                      -- pass the option through to ipython"
    echo "  -v, -version        -- display Sage version information"
    echo "  -dumpversion        -- print Sage version"

    echo
    ####  1.......................26..................................................78
    ####  |.....................--.|...................................................|
    echo "Running the notebook:"
    echo "  --notebook=[...]    -- start the Sage notebook (valid options are"
    echo "                         'default', 'sagenb', 'jupyter' and 'export')."
    echo "                         Current default is 'export' sagenb to jupyter."
    echo "                         See the output of sage --notebook --help"
    echo "                         for more details and examples of how to pass"
    echo "                         optional arguments"
    echo "  -inotebook [...]    -- start the *insecure* Sage notebook (deprecated)"
    echo "  -n, -notebook [...] -- start the default Sage notebook (options are the"
    echo "                         same as for the notebook command in Sage).  See the"
    echo "                         output of sage -n -h for more details"

    echo
    ####  1.......................26..................................................78
    ####  |.....................--.|...................................................|
    echo "Running external programs:"
    echo "  -cleaner            -- run the Sage cleaner"
    echo "  -cython [...]       -- run Cython with given arguments"
    echo "  -ecl [...]          -- run Common Lisp"
    echo "  -gap [...]          -- run Sage's Gap with given arguments"
    echo "  -gdb                -- run Sage under the control of gdb"
    echo "  -gp [...]           -- run Sage's PARI/GP calculator with given arguments"
    echo "  -ipython [...]      -- run Sage's IPython using the default environment (not"
    echo "                         Sage), passing additional options to IPython"
    echo "  -kash [...]         -- run Sage's Kash with given arguments"
    command -v kash &>/dev/null || \
    echo "                         (not installed currently, run sage -i kash)"
    echo "  -lisp [...]         -- run Lisp interpreter included with Sage"
    echo "  -M2 [...]           -- run Sage's Macaulay2 with given arguments"
    command -v M2 &>/dev/null || \
    echo "                         (not installed currently, run sage -i macaulay2)"
    echo "  -maxima [...]       -- run Sage's Maxima with given arguments"
    echo "  -mwrank [...]       -- run Sage's mwrank with given arguments"
    echo "  -polymake [...]     -- run Sage's Polymake with given arguments"
    command -v polymake &>/dev/null || \
    echo "                         (not installed currently, run sage -i polymake)"
    echo "  -python [...]       -- run the Python interpreter"
    echo "  -R [...]            -- run Sage's R with given arguments"
    echo "  -sh [...]           -- run \$SHELL ($SHELL) with Sage environment variables"
    echo "  -singular [...]     -- run Sage's singular with given arguments"
    echo "  -sqlite3 [...]      -- run Sage's sqlite3 with given arguments"
    echo "  -twistd [...]       -- run Twisted server"

    echo
    ####  1.......................26..................................................78
    ####  |.....................--.|...................................................|
    echo "Testing the Sage library:"
    echo "  -startuptime [module] -- display how long each component of Sage takes to"
    echo "                         start up; optionally specify a module to get more"
    echo "                         details about that particular module"
    echo "  -t [options] <--all|files|dir>"
    echo "                      -- test examples in .py, .pyx, .sage, .tex or .rst files"
    echo "                         selected options:"
    echo "                           --long - include lines with the phrase 'long time'"
    echo "                           --verbose - print debugging output during the test"
    echo "                           --randorder[=seed] - randomize order of tests"
    echo "                           --initial - only show the first failure per block"
    echo "                           --debug - drop into PDB after an unexpected error"
    echo "                           --failed - only test files that failed last test"
    echo "                           --sagenb - test all sagenb files"
    echo "                           --help - show all testing options"
    echo "                           --warn-long [timeout] - warning if doctest is slow"
    echo "                           --only-errors - only output failures, not successes"
    echo "  -tp <N> [...]       -- like -t above, but tests in parallel using N threads"
    echo "                         with 0 interpreted as a sensible default"
    echo "  -testall [options]  -- test all source files, docs, and examples.  options"
    echo "                         like -t"

    echo
    ####  1.......................26..................................................78
    ####  |.....................--.|...................................................|
    echo "Documentation:"
    echo "  -docbuild [lang/]<document> <html|pdf|...> -- Build the Sage documentation"
    echo "  -search_src <string> -- search through all the Sage library code for string"
    echo "  -search_doc <string> -- search through the Sage documentation for string"
    echo "  -grep <string>      -- same as -search_src"
    echo "  -grepdoc <string>   -- same as -search_doc"

    echo
    ####  1.......................26..................................................78
    ####  |.....................--.|...................................................|
    echo "File conversion:"
    echo "  -rst2ipynb [...]    -- Generates Jupyter notebook (.ipynb) from standalone"
    echo "                         reStructuredText source."
    echo "  -rst2txt [...]      -- Generates Sage worksheet text file from standalone"
    echo "                         reStructuredText source."
    echo "  -rst2sws [...]      -- Generates Sage worksheet (.sws) from standalone"
    echo "                         reStructuredText source."
    echo "  -sws2rst <sws doc>  -- Generates a reStructuredText source file from"
    echo "                         a Sage worksheet (.sws) document."

    echo
    ####  1.......................26..................................................78
    ####  |.....................--.|...................................................|
    echo "Valgrind memory debugging:"
    echo "  -cachegrind         -- run Sage using Valgrind's cachegrind tool.  The log"
    echo "                         files are named sage-cachegrind.PID can be found in"
    echo "                         $DOT_SAGE"
    echo "  -callgrind          -- run Sage using Valgrind's callgrind tool.  The log"
    echo "                         files are named sage-callgrind.PID can be found in"
    echo "                         $DOT_SAGE"
    echo "  -massif             -- run Sage using Valgrind's massif tool.  The log"
    echo "                         files are named sage-massif.PID can be found in"
    echo "                         $DOT_SAGE"
    echo "  -memcheck           -- run Sage using Valgrind's memcheck tool.  The log"
    echo "                         files are named sage-memcheck.PID can be found in"
    echo "                         $DOT_SAGE"
    echo "  -omega              -- run Sage using Valgrind's omega tool.  The log"
    echo "                         files are named sage-omega.PID can be found in"
    echo "                         $DOT_SAGE"
    echo "  -valgrind           -- this is an alias for -memcheck"
    echo
    echo "You can also use -- before a long option, e.g., 'sage --optional'."
    echo
    exit 0
}


#####################################################################
# Special options to be processed without sage-env
#####################################################################

# Check for '--nodotsage' before sourcing sage-env; otherwise sage-env
# will already have set some environment variables with the old
# setting for DOT_SAGE.
if [ "$1" = '--nodotsage' ]; then
    export DOT_SAGE=`mktemp -d ${TMPDIR:-/tmp}/dotsageXXXXXX`
    shift
    command "$0" "$@"
    status=$?
    rm -rf "$DOT_SAGE"
    exit $status
fi


#####################################################################
# Source sage-env ($0 is the name of this "sage" script, so we can just
# append -env to that). We redirect stdout to stderr, which is safer
# for scripts.
#####################################################################
if [ "\"$0\"" = "\"/usr/bin/sage\"" ]; then
    . "/usr/share/sagemath/bin/sage-env" >&2
else
    . "$0-env" >&2
fi

if [ $? -ne 0 ]; then
    echo >&2 "Error setting environment variables by sourcing '$0-env';"
    echo >&2 "possibly contact sage-devel (see http://groups.google.com/group/sage-devel)."
    exit 1
fi


if [ $# -gt 0 ]; then
  if [ "$1" = '-h' -o "$1" = '-?' -o "$1" = '-help' -o "$1" = '--help' ]; then
     usage
  fi
  if [ "$1" = "-advanced" -o "$1" = "--advanced" ]; then
     usage_advanced
  fi
fi

# Prepare for running Sage, either interactively or non-interactively.
sage_setup() {
    # Display the startup banner (unless SAGE_BANNER is explicitly "no")
    sage_banner

    sage-cleaner &>/dev/null &
}


# Check to see if the whole Sage install tree has moved.  If so,
# change various hardcoded paths.  Skip this if we don't have write
# access to $SAGE_LOCAL (e.g. when running as a different user) or
# if Python and sage-location haven't been installed yet.
maybe_sage_location()
{
    if [ -w "$SAGE_LOCAL" ]; then
        if [ -x "$SAGE_LOCAL/bin/python" ] && [ -x "$SAGE_LOCAL/bin/sage-location" ]; then
            sage-location || exit $?
        fi
    fi
}


# Start an interactive Sage session, this function never returns.
interactive_sage() {
    sage_setup
    exec sage-ipython "$@" -i
}

if [ "$1" = '-min' -o "$1" = '--min' ]; then
    shift
    export SAGE_IMPORTALL=no
fi

if [ "$1" = '-q' ]; then
    shift
    export SAGE_BANNER=no
fi

if [ $# -eq 0 ]; then
    interactive_sage
fi

if [ "$1" = '-cleaner' -o "$1" = '--cleaner' ]; then
    exec sage-cleaner
fi

#####################################################################
# Report information about the Sage environment
#####################################################################

if [ "$1" = '-dumpversion' -o "$1" = '--dumpversion' ]; then
        . "$SAGE_SCRIPTS_DIR"/sage-version.sh
        echo ${SAGE_VERSION}
        exit 0
fi

if [ "$1" = '-v' -o "$1" = '-version' -o "$1" = '--version' ]; then
        . "$SAGE_SCRIPTS_DIR"/sage-version.sh
        echo "SageMath version ${SAGE_VERSION}, Release Date: ${SAGE_RELEASE_DATE}"
        exit 0
fi

if [ "$1" = '-root'  -o "$1" = '--root' ]; then
    echo "$SAGE_ROOT"
    exit 0
fi

#####################################################################
# Run Sage's versions of the standard Algebra/Geometry etc. software
#####################################################################

if [ "$1" = '-axiom' -o "$1" = '--axiom' ]; then
    shift
    exec axiom "$@"
fi

if [ "$1" = '-gap' -o "$1" = '--gap' ]; then
    shift
    exec gap "$@"
fi

if [ "$1" = '-gp' -o "$1" = '--gp' ]; then
    shift
    exec gp "$@"
fi

if [ "$1" = '-polymake' -o "$1" = '--polymake' ]; then
    shift
    exec polymake "$@"
fi

if [ "$1" = '-singular' -o "$1" = '--singular' ]; then
    shift
    exec Singular "$@"
fi

if [ "$1" = '-sqlite3' -o "$1" = '--sqlite3' ]; then
    shift
    exec sqlite3 "$@"
fi

if [ "$1" = '-sws2rst' -o "$1" = '--sws2rst' ]; then
    shift
    exec sage-sws2rst "$@"
fi

if [ "$1" = '-twistd' -o "$1" = '--twistd' ]; then
    shift
    exec twistd "$@"
fi

if [ "$1" = '-ecl' -o "$1" = '--ecl' ]; then
    shift
    exec ecl "$@"
fi

if [ "$1" = '-lisp' -o "$1" = '--lisp' ]; then
    shift
    exec ecl "$@"
fi

if [ "$1" = '-kash' -o "$1" = '--kash' ]; then
    shift
    exec kash "$@"
fi

if [ "$1" = '-maxima' -o "$1" = '--maxima' ]; then
    shift
    exec maxima-sage "$@"
fi

if [ "$1" = '-mwrank' -o "$1" = '--mwrank' ]; then
    shift
    exec mwrank "$@"
fi

if [ "$1" = '-M2' -o "$1" = '--M2' ]; then
    shift
    exec M2 "$@"
fi

if [ "$1" = '-python' -o "$1" = '--python' ]; then
    shift
    exec python "$@"
fi

if [ "$1" = '-python2' -o "$1" = '--python2' ]; then
    shift
    exec python2 "$@"
fi

if [ "$1" = '-python3' -o "$1" = '--python3' ]; then
    shift
    exec python3 "$@"
fi

if [ "$1" = '-R' -o "$1" = '--R' ]; then
    shift
    exec R "$@"
fi

if [ "$1" = '-ipython' -o "$1" = '--ipython' ]; then
    shift
    exec ipython "$@"
fi

if [ "$1" = '-git' -o "$1" = '--git' ]; then
    shift
    exec git "$@"
fi

if [ "$1" = '-sh' -o "$1" = '--sh' ]; then
    # AUTHORS:
    # - Carl Witty and William Stein: initial version
    # - Craig Citro: add options for not loading profile
    # - Martin Albrecht: fix zshell prompt (#11866)
    # - John Palmieri: shorten the prompts, and don't print messages if
    #   there are more arguments to 'sage -sh' (#11790)
    shift
    # If $SHELL is unset, default to bash
    if [ -z "$SHELL" ]; then
        export SHELL=bash
    fi
    # We must start a new shell with no .profile or .bashrc files
    # processed, so that we know our path is correct
    SHELL_NAME=`basename "$SHELL"`
    # Check for SAGE_SHPROMPT.  If defined, use for the prompt.  If
    # not, check for already-defined $PS1, and if defined use that.
    # $PS1 should only be available if it is defined in
    # $DOT_SAGE/sagerc.
    if [ -n "$SAGE_SHPROMPT" ]; then
        oldPS1=$SAGE_SHPROMPT
    elif [ -n "$PS1" ]; then
        oldPS1=$PS1
    fi
    # Set the default prompt.  If available, use reverse video to
    # highlight the string "(sage-sh)".
    if tput rev &>/dev/null; then
        color_prompt=yes
    fi
    case "$SHELL_NAME" in
        bash)
            SHELL_OPTS="--norc"
            if [ "$color_prompt" = yes ]; then
                PS1="\[$(tput rev)\](sage-sh)\[$(tput sgr0)\] \u@\h:\W\$ "
            else
                PS1="(sage-sh) \u@\h:\w\$ "
            fi
            export PS1
            ;;
        csh)
            # csh doesn't seem to allow the specification of a different
            # .cshrc file, and the prompt can only be set in this file, so
            # don't bother changing the prompt.
            SHELL_OPTS="-f"
            ;;
        ksh)
            SHELL_OPTS="-p"
            if [ "$color_prompt" = yes ] ; then
                PS1="$(tput rev)(sage-sh)$(tput sgr0) $USER@`hostname -s`:\${PWD##*/}$ "
            else
                PS1="(sage-sh) $USER@`hostname -s`:\${PWD##*/}$ "
            fi
            export PS1
            ;;
        sh)
            # We don't really know which shell "sh" is (it could be
            # bash, but this is not guaranteed), so we don't set
            # SHELL_OPTS.
            if [ "$color_prompt" = yes ] ; then
                PS1="$(tput rev)(sage-sh)$(tput sgr0) $USER@`hostname -s`:\${PWD##*/}$ "
            else
                PS1="(sage-sh) $USER@`hostname -s`:\${PWD}$ "
            fi
            export PS1
            ;;
        tcsh)
            # tcsh doesn't seem to allow the specification of a different
            # .tcshrc file, and the prompt can only be set in this file, so
            # don't bother changing the prompt.
            SHELL_OPTS="-f"
            ;;
        zsh)
            PS1="%S(sage-sh)%s %n@%m:%~$ "
            # In zsh, the system /etc/zshenv is *always* run,
            # and this may change the path (like on OSX), so we'll
            # create a temporary .zshenv to reset the path
            ZDOTDIR=$DOT_SAGE && export ZDOTDIR
            cat >"$ZDOTDIR/.zshenv" <<EOF
PATH="$PATH" && export PATH
EOF
            SHELL_OPTS=" -d"
            export PS1
            ;;
        *)
            export PS1='(sage-sh) $ '
            ;;
    esac
    if [ -n "$oldPS1" ]; then
        PS1="$oldPS1"
        export PS1
    fi
    if [ $# -eq 0 ]; then
        # No arguments, so print informative message...
        echo >&2
        echo >&2 "Starting subshell with Sage environment variables set.  Don't forget"
        echo >&2 "to exit when you are done.  Beware:"
        echo >&2 " * Do not do anything with other copies of Sage on your system."
        echo >&2 " * Do not use this for installing Sage packages using \"sage -i\" or for"
        echo >&2 "   running \"make\" at Sage's root directory.  These should be done"
        echo >&2 "   outside the Sage shell."
        echo >&2
        if [ -n "$SHELL_OPTS" ]; then
            echo >&2 "Bypassing shell configuration files..."
            echo >&2
        fi
        echo >&2 "Note: SAGE_ROOT=$SAGE_ROOT"
        "$SHELL" $SHELL_OPTS "$@"
        status=$?
        echo "Exited Sage subshell." 1>&2
    else
        exec "$SHELL" $SHELL_OPTS "$@"
        # If 'exec' returns, an error occurred:
        status=$?
        echo >&2 "Fatal error: 'exec \"$SHELL\" \"$@\"' failed!"
    fi
    exit $status
fi

#####################################################################
# File conversion
#####################################################################

if [ "$1" = '-rst2ipynb' -o "$1" = '--rst2ipynb' ]; then
    shift
    exec rst2ipynb --kernel=sagemath "$@"
fi

if [ "$1" = '-rst2txt' -o "$1" = '--rst2txt' ]; then
    shift
    exec sage-rst2txt "$@"
fi

if [ "$1" = '-rst2sws' -o "$1" = '--rst2sws' ]; then
    shift
    exec sage-rst2sws "$@"
fi

#####################################################################
# Run Sage's versions of the standard Algebra/Geometry etc. software
#####################################################################

if [[ "$1" =~ ^--notebook=.* || "$1" =~ ^-n=.* || "$1" =~ ^-notebook=.* ]] ; then
    sage-cleaner &>/dev/null &
    exec sage-notebook "$@"
fi

if [ "$1" = "-notebook" -o "$1" = '--notebook' -o "$1" = '-n' ]; then
    sage-cleaner &>/dev/null &
    exec sage-notebook "$@"
fi

if [ "$1" = "-inotebook" -o "$1" = '--inotebook' ]; then
    shift
    sage-cleaner &>/dev/null &
    exec sage-notebook --notebook=sagenb secure=False "$@"
fi

if [ "$1" = '-grep' -o "$1" = "--grep" -o "$1" = "-search_src" -o "$1" = "--search_src" ]; then
    shift
    sage-grep "$@"
    exit 0
fi

if [ "$1" = '-grepdoc' -o "$1" = "--grepdoc" -o "$1" = "-search_doc" -o "$1" = "--search_doc" ]; then
    shift
    sage-grepdoc "$@"
    exit 0
fi

if [ "$1" = '-r' ]; then
    shift
    interactive_sage
fi

if [ "$1" = '-t' -o "$1" = '-tp' ]; then
    SAGE_BANNER=no sage_setup
    export PYTHONIOENCODING="utf-8"  # Fix encoding for doctests
    if [ "$1" = '-tp' ]; then
        shift
        exec sage-runtests -p "$@"
    else
        shift
        exec sage-runtests "$@"
    fi
fi

if [ "$1" = '-testall' -o "$1" = "--testall" ]; then
    shift
    SAGE_BANNER=no sage_setup
    export PYTHONIOENCODING="utf-8"  # Fix encoding for doctests
    exec sage-runtests -a "$@"
fi

if [ "$1" = '-c' ]; then
    shift
    SAGE_BANNER=no sage_setup
    unset TERM  # See Trac #12263
    exec sage-eval "$@"
fi

if [ "$1" = "-docbuild" -o "$1" = "--docbuild" ]; then
    shift
    exec python -m "sage_setup.docbuild" "$@"
fi

if [ "$1" = '-gdb' -o "$1" = "--gdb" ]; then
    shift
    sage_setup
    if [ "$SAGE_DEBUG" = "no" ]; then
        gdb -x "$SAGE_SCRIPTS_DIR/sage-gdb-commands" \
            -args python "$SAGE_SCRIPTS_DIR/sage-ipython" "$@" -i
    else
        # Location of cython_debug directory
        cygdb_dir="$SAGE_SRC/build/cythonized"
        cygdb "$cygdb_dir" "$SAGE_SRC/sage" \
            -- -x "$SAGE_SCRIPTS_DIR/sage-gdb-commands" \
            -args python "$SAGE_SCRIPTS_DIR/sage-ipython" "$@" -i
    fi
    exit $?
fi

if [ "$1" = '-preparse' -o "$1" = "--preparse" ]; then
    shift
    exec sage-preparse "$@"
fi

if [ "$1" = "-cython" -o "$1" = '--cython' -o "$1" = '-pyrex' -o "$1" = "--pyrex" ]; then
    shift
    exec sage-cython "$@"
fi

if [ "$1" = '-valgrind' -o "$1" = "--valgrind" -o "$1" = '-memcheck' -o "$1" = "--memcheck" ]; then
    shift
    sage_setup
    exec sage-valgrind "$@"
fi

if [ "$1" = '-massif' -o "$1" = "--massif" ]; then
    shift
    sage_setup
    exec sage-massif "$@"
fi

if [ "$1" = '-cachegrind' -o "$1" = "--cachegrind" ]; then
    shift
    sage_setup
    exec sage-cachegrind "$@"
fi

if [ "$1" = '-callgrind' -o "$1" = "--callgrind" ]; then
    shift
    sage_setup
    exec sage-callgrind "$@"
fi

if [ "$1" = '-omega' -o "$1" = "--omega" ]; then
    shift
    sage_setup
    exec sage-omega "$@"
fi

if [ "$1" = '-startuptime' -o "$1" = '--startuptime' ]; then
    exec sage-startuptime.py "$@"
fi

if [ "$1" = '-gthread' -o "$1" = '-qthread' -o "$1" = '-q4thread' -o "$1" = '-wthread' -o "$1" = '-pylab' ]; then
    # Intentionally no "shift" here
    interactive_sage "$@"
fi

if [ $# -ge 1 ]; then
    SAGE_BANNER=no sage_setup
    unset TERM  # See Trac #12263
    exec sage-run "$@"
fi