假设我想复制一个目录的内容,不包括名称包含单词“音乐”的文件和文件夹。

cp [exclude-matches] *Music* /target_directory

应该用什么来代替[排除匹配]来实现这一点?


当前回答

我个人倾向于使用grep和while命令。这允许您编写强大而可读的脚本,以确保您最终做的正是您想要的。另外,通过使用echo命令,您可以在执行实际操作之前进行演练。例如:

ls | grep -v "Music" | while read filename
do
echo $filename
done

会打印出你要复制的文件。如果列表是正确的,下一步是简单地将echo命令替换为copy命令,如下所示:

ls | grep -v "Music" | while read filename
do
cp "$filename" /target_directory
done

其他回答

find可以找到一个解决方案。

$ mkdir foo bar
$ touch foo/a.txt foo/Music.txt
$ find foo -type f ! -name '*Music*' -exec cp {} bar \;
$ ls bar
a.txt

Find有相当多的选项,你可以非常具体地包括和排除什么。

编辑:Adam在评论中指出,这是递归的。查找选项mindepth和maxdepth可以用来控制这个。

我个人倾向于使用grep和while命令。这允许您编写强大而可读的脚本,以确保您最终做的正是您想要的。另外,通过使用echo命令,您可以在执行实际操作之前进行演练。例如:

ls | grep -v "Music" | while read filename
do
echo $filename
done

会打印出你要复制的文件。如果列表是正确的,下一步是简单地将echo命令替换为copy命令,如下所示:

ls | grep -v "Music" | while read filename
do
cp "$filename" /target_directory
done

下面的作品列出了当前目录下的所有*.txt文件,除了以数字开头的文件。

这适用于bash, dash, zsh和所有其他POSIX兼容的shell。

for FILE in /some/dir/*.txt; do    # for each *.txt file
    case "${FILE##*/}" in          #   if file basename...
        [0-9]*) continue ;;        #   starts with digit: skip
    esac
    ## otherwise, do stuff with $FILE here
done

In line one the pattern /some/dir/*.txt will cause the for loop to iterate over all files in /some/dir whose name end with .txt. In line two a case statement is used to weed out undesired files. – The ${FILE##*/} expression strips off any leading dir name component from the filename (here /some/dir/) so that patters can match against only the basename of the file. (If you're only weeding out filenames based on suffixes, you can shorten this to $FILE instead.) In line three, all files matching the case pattern [0-9]*) line will be skipped (the continue statement jumps to the next iteration of the for loop). – If you want to you can do something more interesting here, e.g. like skipping all files which do not start with a letter (a–z) using [!a-z]*, or you could use multiple patterns to skip several kinds of filenames e.g. [0-9]*|*.bak to skip files both .bak files, and files which does not start with a number.

不是bash(据我所知),而是:

cp `ls | grep -v Music` /target_directory

我知道这不是你想要的,但它能解决你的问题。

你也可以使用一个非常简单的for循环:

for f in `find . -not -name "*Music*"`
do
    cp $f /target/dir
done