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#!/bin/sh
# Count entries in a given set of directories
self=cf
# Parse options out
while getopts 'o' opt ; do
case $opt in
# Print only the count, not the filename
o) only=1 ;;
# Unknown option
\?)
printf >&2 '%s: Unknown option %s\n' \
"$self" "$opt"
exit 2
;;
esac
done
shift "$((OPTIND-1))"
# Iterate over remaining non-option arguments (directories); default to current
# directory if none given
for dir in "${@:-.}" ; do
# Warn if a non-directory was given, flag errors, but continue
if ! [ -d "$dir" ] ; then
printf >&2 '%s: %s: not a directory\n' \
"$self" "$dir"
ex=1
continue
fi
# Add files matching glob, shift them off if unexpanded (first and only
# entry doesn't exist)
set -- "$dir"/*
[ -e "$1" ] || shift
# Add dot files, shift off the "." and ".." entries (sh(1) implementations
# seem to vary on whether they include these)
set -- "$dir"/.* "$@"
[ -e "$1" ] || shift
[ "$1" = "$dir"/. ] && shift
[ "$1" = "$dir"/.. ] && shift
# Print either just the count, or the count and the dirname
if [ -n "$only" ] ; then
printf '%u\n' "$#"
else
printf '%u\t%s\n' "$#" "$dir"
fi
done
# Exit non-zero if a non-directory was given as an argument
exit "${ex:-0}"
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