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如何在linux中创建一个脚本以删除目录中的所有文件，期望仅保留5个文件

发布于 2025-02-11 06:33:24 字数 67 浏览 3 评论 0原文

如何在Linux中创建一个脚本以从目录条件删除所有文件： - 如果在目录中仅保留5个文件，则不应从该目录中删除任何文件。

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春夜浅 2025-02-18 06:33:24

#! /bin/bash

myPath="/tmp"

myFileList=$(find $myPath -maxdepth 1   -type f)

num=0

for candidate in $myFileList
do
        num=$(($num + 1))

        if [[ $num -le 5 ]]
        then
                echo "do not delete: $num"
                continue
        fi

        echo "number $num: delete $candidate"
        # remove the followong comment sign if you want the script to remove the file
        # rm $candidate
done

#! /bin/bash

myPath="/tmp"

myFileList=$(find $myPath -maxdepth 1   -type f)

num=0

for candidate in $myFileList
do
        num=$(($num + 1))

        if [[ $num -le 5 ]]
        then
                echo "do not delete: $num"
                continue
        fi

        echo "number $num: delete $candidate"
        # remove the followong comment sign if you want the script to remove the file
        # rm $candidate
done

回复收藏 0 原文

画离情绘悲伤 2025-02-18 06:33:24

为了解决该问题，请在for-loop之前的文件名更改设置“ IFS” shell变量的设置：

#! /bin/bash

myPath="/tmp"

myFileList=$(find $myPath -maxdepth 1   -type f  -printf "%T@ %p\n" |sort -rn|awk '1 {$1=""; print $0;}')

num=0

OIFS="$IFS"
IFS=
\n'

for candidate in $myFileList
do
        num=$(($num + 1))

        if [[ $num -le 5 ]]
        then
                echo "do not delete: $num  \"$candidate\""
                continue
        fi

        echo "number $num: delete $candidate"
        # remove the followong comment sign if you want the script to remove the file
        # rm $candidate
done
IFS="$OIFS"

to fix the problem with spaces in filenames change setting of 'IFS' shell variable before the for-loop:

#! /bin/bash

myPath="/tmp"

myFileList=$(find $myPath -maxdepth 1   -type f  -printf "%T@ %p\n" |sort -rn|awk '1 {$1=""; print $0;}')

num=0

OIFS="$IFS"
IFS=
\n'

for candidate in $myFileList
do
        num=$(($num + 1))

        if [[ $num -le 5 ]]
        then
                echo "do not delete: $num  \"$candidate\""
                continue
        fi

        echo "number $num: delete $candidate"
        # remove the followong comment sign if you want the script to remove the file
        # rm $candidate
done
IFS="$OIFS"

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