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# Completion setup for ud
_ud() {
# Only makes sense for the second argument
((COMP_CWORD == 2)) || return 1
# Iterate through directories, null-separated, add them to completions
local dirname
while IFS= read -rd '' dirname ; do
COMPREPLY[${#COMPREPLY[@]}]=$dirname
done < <(
# Set options to glob correctly
shopt -s dotglob nullglob
# Collect directory names, strip trailing slashes
local -a dirnames
dirnames=("${COMP_WORDS[COMP_CWORD]}"*/)
dirnames=("${dirnames[@]%/}")
# Bail if no results to prevent empty output
((${#dirnames[@]})) || exit 1
# Print results null-delimited
printf '%s\0' "${dirnames[@]}"
)
}
complete -F _ud -o filenames ud
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