ÄúÕýÔÚ¿´µÄLinux|UnixÊÇ:ÈçºÎÓÃShell½Å±¾±àдµÝ¹é³ÌÐò¡£

UNIX Shell ½Å±¾ÀàËÆ DOS µÄÅú´¦ÀíÃüÁµ«±È½ÏÆðÀ´ UNIX Shell µÄ¹¦ÄܸüÇ¿´ó£¬ÔÚijЩ·½Ã棬Shell ÉõÖÁ³¬¹ýÁËһЩ¸ß¼¶ÓïÑÔ¡£

ÏÂ±ßµÄ Shell ½Å±¾ÑÝʾÁËÈçºÎÓà Shell ½Å±¾±àдµÝ¹é³ÌÐò¡£

ÔËÐÐÇ°ÏÈÖ´ÐÐÏÂÊö×¼±¸ÃüÁ

¢«¢«ln tree.sh /usr/bin/tree

¢«¢«ln tree.sh /usr/bin/wtree

¢«¢«ln tree.sh /usr/bin/dtree

¢«¢«rm tree.sh

# tree.sh

# Depth first Directory list

dtree() {

PWD=`pwd|sed 's/\/\$//`

for d in $*

do

echo "${PWD}/$d"

[ -d "$d" -a -x "$d" ] && {

cd "$d"

dtree *

cd ..

PWD=`pwd|sed 's/\/\$//` # restore PWD

}

done

}

# Depth first Directory list

wtree() {

PWD=`pwd|sed 's/\/\$//`

for d in $*

do

echo ${PWD}/$d

done

for d in $*

do

[ -d "$d" -a -x "$d" ] && {

cd $d

wtree *

cd ..

}

done

}

# Directory list

tree() {

PWD=`pwd|sed 's/\/\$//`

for d in $*

do

echo ${PWD}/$d

done

}

# main

TREE=`basename $0`

if [ "$1" ]

then DIR="$1"

else DIR="."

fi

if cd $DIR

then $TREE *

else echo "$0: Directory $1 read fail."

fi

# (End)