Zpracovani parametru v bashiu

find.sh

adresare=""
cesty=true
while [ $# -gt 0 ]
do
  # nacteni adresaru, ktere se budou prohledavat
	if [ ${1:0:1} != "-" ] ; then
		if $cesty ; then
			adresare="$adresare $1"
			shift
			continue
		else
			echo "Cesty musi predchazet filtrum"
			exit 1
		fi
	fi
	
	# nacteni filtru
	cesty=false
	case $1 in
		-name)
			shift
			if [ -n "$1" ]; then
				name=$1
			else
				echo "Chybi parametr pro \"-name\""
				exit 1
			fi
			
			;;
		-iname)
			shift
			if [ -n "$1" ]; then
				iname=$1
			else
				echo "Chybi parametr pro \"-iname\""
				exit 1
			fi
			
			;;
		-type)
			shift
			
			# detekce typu, v pripade ze neznam typ souboru, konec
			case $1 in
				f|d|l)
					type=$1
					;;
				*)
					echo "Neznamy nebo chybejici typ souboru \"$1\", povolene je f, d, l."
					exit 1
					;;
			esac
			
			;;
		*)
			echo "Neznamy filtr \"$1\", povolene jsou -name, -iname a -type"
			exit 1
			;;
	esac
	
	shift
done

iname=`echo "$iname" | tr [:upper:] [:lower:]`

# pokud nebyl v parametrech adresar, vychozi je soucasny
if [ ! -n "$adresare" ] ; then
	adresare="."
fi

# kontrola existence adresaru v parametrech
for file in $adresare
do
	if [ ! -d "$file" ] ; then
		echo "Neexistujici adresar $file"
		exit 1
	fi
done

ls -R1 $adresare | while read line
do
	if [[ "$line" == total* ]] ; then
		continue
	fi

	if  [ ! -n "$line" ] ; then
		readpath=true
		continue;
	fi
	
	if $readpath ; then
		currentpath=${line/:/}
		readpath=false
		continue
	fi
	
	match=true
	
	# nyni uz mame jednotlive soubory a muzeme je otestovat, jestli vyhovuji nasemu findu
	if [ -n "$name" ] ; then
		if [[ $line != $name ]] ; then
			match=false
		fi		
	fi
	
	if [ -n "$iname" ] ; then
		if [[ `echo "$line" | tr [:upper:] [:lower:]` != $iname ]]; then
			match=false
		fi		
	fi
	
	if [ -n "$type" ] ; then
		case $type in
			f)
				if [ ! -f "$currentpath/$line" ] ; then
					match=false
				fi
				;;
			d)
				if [ ! -d "$currentpath/$line" ] ; then
					match=false
				fi
				;;
			l)
				if [ ! -h "$currentpath/$line" ] ; then
					match=false
				fi
				;;
		esac
	fi
	
	if $match ; then
		echo "$currentpath/$line"
	fi
	
done