shell 判斷檔案/目錄是否為空白

  shell 判斷檔案/目錄是否為空白 分類： Linux 2010-05-29 17:06  3512人閱讀  評論(0)  收藏  舉報 shell file

剛開始寫shell,很多都不會在網上東找找西找找.

 

#判斷檔案目錄是否為空白

第一種:

emptydir.sh

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#!/bin/sh
DIRECTORY=$1
if [ "`ls -A $DIRECTORY`" = "" ]; then
  echo "$DIRECTORY is indeed empty"
else
  echo "$DIRECTORY is not empty"
fi

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第二種:

count.sh

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#!/bin/sh
count=`ls $*|wc -w`
if [ "$count" > "0" ];
then
 echo "file size $count"
else
 echo "empty!"
fi

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#目錄是否存在

ifmkdir.sh

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#!/bin/sh
dir="test"
if [ ! -d $dir ]; then
        echo "$dir not exists"
        mkdir "$dir"
else
        echo "$dir exists!"
fi

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