bash-5.0 distribution sources and documentation

[thirdparty/bash.git] / tests / new-exp2.sub

export LC_ALL=C
export LANG=C

# test out the new $(< filename) code
# it should be exactly equivalent to $(cat filename)

FILENAME=$TMPDIR/bashtmp.x$$

trap 'rm -f $FILENAME' 0

cat >$FILENAME << EOF
line 1
line 2
line 3
EOF

LINES1=$(cat $FILENAME)
LINES2=$(< $FILENAME)

if [[ $LINES1 != $LINES2 ]]; then
	echo 'whoops: $(< filename) failed'
fi

LINES2=$(< $TMPDIR/bashtmp.x*)
if [[ $LINES1 != $LINES2 ]]; then
	echo 'whoops: $(< filename) with glob expansion failed'
fi

# but the glob expansion in the redirection should fail in posix mode
set -o posix
exec 3>&2
exec 2>/dev/null
LINES2=$(< $TMPDIR/bashtmp.x*)
exec 2>&3
if [[ $LINES2 -gt 0 ]]; then
	echo "whoops: redirection glob expansion should be disabled in posix mode" >&2
fi
set +o posix

# now see what happens when we try it with a non-existant file
rm -f /tmp/redir-notthere
LINES3=$(< /tmp/redir-notthere)
echo $?

# These were bugs through bash-4.2
{ : "$({xxxxxxxxxxxxxxxxxxxx}</dev/stdin)"; } <<<'hi'
echo ${xxxxxxxxxxxxxxxxxxxx}

{ echo "$(1111111111111111111111</dev/stdin)"; } <<<'hi'