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# Test that we have metadata about what options this system's ls(1) supports,
# and try to create it if not
(
# Create a directory to hold metadata about ls(1)
lcd=$HOME/.cache/ls
if ! [ -d "$lcd" ] ; then
mkdir -p -- "$lcd" || exit
fi
# Write ls(1)'s --help output to a file, even if it's empty
if ! [ -f "$lcd"/help ] ; then
ls --help >"$lcd"/help 2>/dev/null || exit
# Iterate through some useful options and create files to show they're
# available
set -- almost-all \
block-size \
classify \
color \
human-readable \
time-style
for opt ; do
grep -q -- --"$opt" "$lcd"/help || continue
touch -- "$lcd"/"$opt" || exit
done
fi
)
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