删除配置文件中提到的文件以外的所有文件 [英] Deleting all files except ones mentioned in config file

问题描述

情况:

我需要一个bash脚本，该脚本删除当前文件夹中的所有文件，但在名为" .rmignore "的文件中提及的所有文件除外.该文件可能包含相对于当前文件夹的地址，也可能包含星号(*).例如:

I need a bash script that deletes all files in the current folder, except all the files mentioned in a file called ".rmignore". This file may contain addresses relative to the current folder, that might also contain asterisks(*). For example:

1.php
2/1.php
1/*.php

我尝试过的事情:

• 我尝试使用GLOBIGNORE，但是效果不佳.

• 我还尝试将find与grep一起使用，如下所示:

• I tried to use GLOBIGNORE but that didn't work well.

• I also tried to use find with grep, like follows:

find . | grep -Fxv $(echo $(cat .rmignore) | tr ' ' "\n")

推荐答案

将find的出口通过管道传递到另一个命令被认为是不好的做法.可以在命令后使用-exec，-execdir和'{}'作为文件的占位符，并使用';'指示命令的结尾.您还可以使用'+'将命令与IIRC一起传递.

It is considered bad practice to pipe the exit of find to another command. You can use -exec, -execdir followed by the command and '{}' as a placeholder for the file, and ';' to indicate the end of your command. You can also use '+' to pipe commands together IIRC.

在这种情况下，您希望列出目录的所有内容，并逐个删除文件.

In your case, you want to list all the contend of a directory, and remove files one by one.

#!/usr/bin/env bash

set -o nounset
set -o errexit
shopt -s nullglob # allows glob to expand to nothing if no match
shopt -s globstar # process recursively current directory

my:rm_all() {
    local ignore_file=".rmignore"
    local ignore_array=()
    while read -r glob; # Generate files list
    do
        ignore_array+=(${glob});
    done < "${ignore_file}"
    echo "${ignore_array[@]}"

    for file in **; # iterate over all the content of the current directory
    do
        if [ -f "${file}" ]; # file exist and is file
        then
            local do_rmfile=true;
            # Remove only if matches regex
            for ignore in "${ignore_array[@]}"; # Iterate over files to keep
            do
                [[ "${file}" == "${ignore}" ]] && do_rmfile=false; #rm ${file};
            done

            ${do_rmfile} && echo "Removing ${file}"
        fi
    done
}

my:rm_all;

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