bash-5.1 distribution sources and documentation

[thirdparty/bash.git] / tests / trap4.sub

#   This program is free software: you can redistribute it and/or modify
#   it under the terms of the GNU General Public License as published by
#   the Free Software Foundation, either version 3 of the License, or
#   (at your option) any later version.
#
#   This program is distributed in the hope that it will be useful,
#   but WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#   GNU General Public License for more details.
#
#   You should have received a copy of the GNU General Public License
#   along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
# make sure subshells at the end of pipelines run any exit traps they set

: | { trap 'echo exit subshell 1' EXIT; exit; }; echo current shell

: | { trap 'echo exit subshell 2' EXIT; exit; }; echo current shell

: | { trap 'echo exit subshell 3' EXIT; exit; } | : ; echo current shell

: | { trap 'echo exit subshell 4' EXIT; exit; } | : ; echo current shell

trap 'echo inherited exit trap' EXIT
: | { exit; } ; echo outside 1
: | ( exit; ) ; echo outside 2
: | { exit; } | : ; echo outside 3
: | ( exit; ) | : ; echo outside 4

trap - EXIT

# make sure group commands that are not at the beginning or end of pipelines
# run an EXIT trap, with and without the exit builtin
echo ignored |
{
    trap 'echo "in trap EXIT">&2' EXIT
    sleep 4 &
    echo 'sleep 2'>&2
    sleep 2
    echo 'wait $!'>&2
    wait $!
    echo 'exit'>&2
    exit
} | cat

echo ignored |
{
    trap 'echo "in trap EXIT">&2' EXIT
    sleep 4 &
    echo 'sleep 2'>&2
    sleep 2
    echo 'wait $!'>&2
    wait $!
    echo 'exit'>&2
} | cat